19997383900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^3\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 288

約数和(自身を含む): 51761687040

約数和(自身を除く): 31764303140

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 31, 34, 50, 52, 62, 65, 68, 85, 100, 101, 124, 130, 155, 170, 202, 221, 260, 289, 310, 325, 340, 403, 404, 425, 442, 505, 527, 578, 620, 650, 775, 806, 850, 884, 1010, 1054, 1105, 1156, 1300, 1313, 1445, 1550, 1612, 1700, 1717, 2015, 2020, 2108, 2210, 2525, 2626, 2635, 2890, 3100, 3131, 3434, 3757, 4030, 4420, 4913, 5050, 5252, 5270, 5525, 5780, 6262, 6565, 6851, 6868, 7225, 7514, 8060, 8585, 8959, 9826, 10075, 10100, 10540, 11050, 12524, 13130, 13175, 13702, 14450, 15028, 15655, 17170, 17918, 18785, 19652, 20150, 22100, 22321, 24565, 26260, 26350, 27404, 28900, 29189, 31310, 32825, 34255, 34340, 35836, 37570, 40300, 40703, 42925, 44642, 44795, 49130, 52700, 53227, 58378, 62620, 63869, 65650, 68510, 75140, 78275, 81406, 85850, 89284, 89590, 93925, 98260, 106454, 111605, 116467, 116756, 122825, 127738, 131300, 137020, 145945, 152303, 156550, 162812, 171275, 171700, 179180, 187850, 203515, 212908, 223210, 223975, 232934, 245650, 255476, 266135, 291890, 304606, 313100, 319345, 342550, 375700, 379457, 407030, 446420, 447950, 465868, 491300, 496213, 532270, 558025, 582335, 583780, 609212, 638690, 685100, 691951, 729725, 758914, 761515, 814060, 895900, 904859, 992426, 1017575, 1064540, 1116050, 1164670, 1277380, 1330675, 1383902, 1459450, 1517828, 1523030, 1596725, 1809718, 1897285, 1979939, 1984852, 2035150, 2232100, 2329340, 2481065, 2661350, 2767804, 2911675, 2918900, 3046060, 3193450, 3459755, 3619436, 3794570, 3807575, 3959878, 4070300, 4524295, 4962130, 5322700, 5823350, 6386900, 6450769, 6919510, 7589140, 7615150, 7919756, 9048590, 9486425, 9899695, 9924260, 11646700, 11763167, 12405325, 12901538, 13839020, 15230300, 15382603, 17298775, 18097180, 18972850, 19799390, 22621475, 23526334, 24810650, 25803076, 30765206, 32253845, 34597550, 37945700, 39598780, 45242950, 47052668, 49498475, 49621300, 58815835, 61530412, 64507690, 69195100, 76913015, 90485900, 98996950, 117631670, 129015380, 153826030, 161269225, 197993900, 199973839, 235263340, 294079175, 307652060, 322538450, 384565075, 399947678, 588158350, 645076900, 769130150, 799895356, 999869195, 1176316700, 1538260300, 1999738390, 3999476780, 4999345975, 9998691950, 19997383900]

約数ペア:

[(1, 19997383900), (2, 9998691950), (4, 4999345975), (5, 3999476780), (10, 1999738390), (13, 1538260300), (17, 1176316700), (20, 999869195), (25, 799895356), (26, 769130150), (31, 645076900), (34, 588158350), (50, 399947678), (52, 384565075), (62, 322538450), (65, 307652060), (68, 294079175), (85, 235263340), (100, 199973839), (101, 197993900), (124, 161269225), (130, 153826030), (155, 129015380), (170, 117631670), (202, 98996950), (221, 90485900), (260, 76913015), (289, 69195100), (310, 64507690), (325, 61530412), (340, 58815835), (403, 49621300), (404, 49498475), (425, 47052668), (442, 45242950), (505, 39598780), (527, 37945700), (578, 34597550), (620, 32253845), (650, 30765206), (775, 25803076), (806, 24810650), (850, 23526334), (884, 22621475), (1010, 19799390), (1054, 18972850), (1105, 18097180), (1156, 17298775), (1300, 15382603), (1313, 15230300), (1445, 13839020), (1550, 12901538), (1612, 12405325), (1700, 11763167), (1717, 11646700), (2015, 9924260), (2020, 9899695), (2108, 9486425), (2210, 9048590), (2525, 7919756), (2626, 7615150), (2635, 7589140), (2890, 6919510), (3100, 6450769), (3131, 6386900), (3434, 5823350), (3757, 5322700), (4030, 4962130), (4420, 4524295), (4913, 4070300), (5050, 3959878), (5252, 3807575), (5270, 3794570), (5525, 3619436), (5780, 3459755), (6262, 3193450), (6565, 3046060), (6851, 2918900), (6868, 2911675), (7225, 2767804), (7514, 2661350), (8060, 2481065), (8585, 2329340), (8959, 2232100), (9826, 2035150), (10075, 1984852), (10100, 1979939), (10540, 1897285), (11050, 1809718), (12524, 1596725), (13130, 1523030), (13175, 1517828), (13702, 1459450), (14450, 1383902), (15028, 1330675), (15655, 1277380), (17170, 1164670), (17918, 1116050), (18785, 1064540), (19652, 1017575), (20150, 992426), (22100, 904859), (22321, 895900), (24565, 814060), (26260, 761515), (26350, 758914), (27404, 729725), (28900, 691951), (29189, 685100), (31310, 638690), (32825, 609212), (34255, 583780), (34340, 582335), (35836, 558025), (37570, 532270), (40300, 496213), (40703, 491300), (42925, 465868), (44642, 447950), (44795, 446420), (49130, 407030), (52700, 379457), (53227, 375700), (58378, 342550), (62620, 319345), (63869, 313100), (65650, 304606), (68510, 291890), (75140, 266135), (78275, 255476), (81406, 245650), (85850, 232934), (89284, 223975), (89590, 223210), (93925, 212908), (98260, 203515), (106454, 187850), (111605, 179180), (116467, 171700), (116756, 171275), (122825, 162812), (127738, 156550), (131300, 152303), (137020, 145945)]