197993900

素因数分解:

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

素因数の和:109

約数の個数: 144

約数和(自身を含む): 507467520

約数和(自身を除く): 309473620

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 31, 34, 50, 52, 62, 65, 68, 85, 100, 124, 130, 155, 170, 221, 260, 289, 310, 325, 340, 403, 425, 442, 527, 578, 620, 650, 775, 806, 850, 884, 1054, 1105, 1156, 1300, 1445, 1550, 1612, 1700, 2015, 2108, 2210, 2635, 2890, 3100, 3757, 4030, 4420, 4913, 5270, 5525, 5780, 6851, 7225, 7514, 8060, 8959, 9826, 10075, 10540, 11050, 13175, 13702, 14450, 15028, 17918, 18785, 19652, 20150, 22100, 24565, 26350, 27404, 28900, 34255, 35836, 37570, 40300, 44795, 49130, 52700, 63869, 68510, 75140, 89590, 93925, 98260, 116467, 122825, 127738, 137020, 152303, 171275, 179180, 187850, 223975, 232934, 245650, 255476, 304606, 319345, 342550, 375700, 447950, 465868, 491300, 582335, 609212, 638690, 685100, 761515, 895900, 1164670, 1277380, 1523030, 1596725, 1979939, 2329340, 2911675, 3046060, 3193450, 3807575, 3959878, 5823350, 6386900, 7615150, 7919756, 9899695, 11646700, 15230300, 19799390, 39598780, 49498475, 98996950, 197993900]

約数ペア:

[(1, 197993900), (2, 98996950), (4, 49498475), (5, 39598780), (10, 19799390), (13, 15230300), (17, 11646700), (20, 9899695), (25, 7919756), (26, 7615150), (31, 6386900), (34, 5823350), (50, 3959878), (52, 3807575), (62, 3193450), (65, 3046060), (68, 2911675), (85, 2329340), (100, 1979939), (124, 1596725), (130, 1523030), (155, 1277380), (170, 1164670), (221, 895900), (260, 761515), (289, 685100), (310, 638690), (325, 609212), (340, 582335), (403, 491300), (425, 465868), (442, 447950), (527, 375700), (578, 342550), (620, 319345), (650, 304606), (775, 255476), (806, 245650), (850, 232934), (884, 223975), (1054, 187850), (1105, 179180), (1156, 171275), (1300, 152303), (1445, 137020), (1550, 127738), (1612, 122825), (1700, 116467), (2015, 98260), (2108, 93925), (2210, 89590), (2635, 75140), (2890, 68510), (3100, 63869), (3757, 52700), (4030, 49130), (4420, 44795), (4913, 40300), (5270, 37570), (5525, 35836), (5780, 34255), (6851, 28900), (7225, 27404), (7514, 26350), (8060, 24565), (8959, 22100), (9826, 20150), (10075, 19652), (10540, 18785), (11050, 17918), (13175, 15028), (13702, 14450)]