256227400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:105

約数の個数: 288

約数和(自身を含む): 767450880

約数和(自身を除く): 511223480

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 17, 20, 22, 25, 26, 31, 34, 40, 44, 50, 52, 55, 62, 65, 68, 85, 88, 100, 104, 110, 124, 130, 136, 143, 155, 170, 187, 200, 220, 221, 248, 260, 275, 286, 289, 310, 325, 340, 341, 374, 403, 425, 440, 442, 520, 527, 550, 572, 578, 620, 650, 680, 682, 715, 748, 775, 806, 850, 884, 935, 1054, 1100, 1105, 1144, 1156, 1240, 1300, 1364, 1430, 1445, 1496, 1550, 1612, 1700, 1705, 1768, 1870, 2015, 2108, 2200, 2210, 2312, 2431, 2600, 2635, 2728, 2860, 2890, 3100, 3179, 3224, 3400, 3410, 3575, 3740, 3757, 4030, 4216, 4420, 4433, 4675, 4862, 5270, 5525, 5720, 5780, 5797, 6200, 6358, 6820, 6851, 7150, 7225, 7480, 7514, 8060, 8525, 8840, 8866, 8959, 9350, 9724, 10075, 10540, 11050, 11560, 11594, 12155, 12716, 13175, 13640, 13702, 14300, 14450, 15028, 15895, 16120, 17050, 17732, 17918, 18700, 18785, 19448, 20150, 21080, 22100, 22165, 23188, 24310, 25432, 26350, 27404, 28600, 28900, 28985, 30056, 31790, 34100, 34255, 35464, 35836, 37400, 37570, 40300, 41327, 44200, 44330, 44795, 46376, 48620, 52700, 54808, 57800, 57970, 60775, 63580, 68200, 68510, 71672, 75140, 75361, 79475, 80600, 82654, 88660, 89590, 93925, 97240, 98549, 105400, 110825, 115940, 116467, 121550, 127160, 137020, 144925, 150280, 150722, 158950, 165308, 171275, 177320, 179180, 187850, 197098, 206635, 221650, 223975, 231880, 232934, 243100, 274040, 289850, 301444, 317900, 330616, 342550, 358360, 375700, 376805, 394196, 413270, 443300, 447950, 465868, 486200, 492745, 579700, 582335, 602888, 635800, 685100, 751400, 753610, 788392, 826540, 886600, 895900, 931736, 985490, 1033175, 1159400, 1164670, 1281137, 1370200, 1507220, 1653080, 1791800, 1884025, 1970980, 2066350, 2329340, 2463725, 2562274, 2911675, 3014440, 3768050, 3941960, 4132700, 4658680, 4927450, 5124548, 5823350, 6405685, 7536100, 8265400, 9854900, 10249096, 11646700, 12811370, 15072200, 19709800, 23293400, 25622740, 32028425, 51245480, 64056850, 128113700, 256227400]

約数ペア:

[(1, 256227400), (2, 128113700), (4, 64056850), (5, 51245480), (8, 32028425), (10, 25622740), (11, 23293400), (13, 19709800), (17, 15072200), (20, 12811370), (22, 11646700), (25, 10249096), (26, 9854900), (31, 8265400), (34, 7536100), (40, 6405685), (44, 5823350), (50, 5124548), (52, 4927450), (55, 4658680), (62, 4132700), (65, 3941960), (68, 3768050), (85, 3014440), (88, 2911675), (100, 2562274), (104, 2463725), (110, 2329340), (124, 2066350), (130, 1970980), (136, 1884025), (143, 1791800), (155, 1653080), (170, 1507220), (187, 1370200), (200, 1281137), (220, 1164670), (221, 1159400), (248, 1033175), (260, 985490), (275, 931736), (286, 895900), (289, 886600), (310, 826540), (325, 788392), (340, 753610), (341, 751400), (374, 685100), (403, 635800), (425, 602888), (440, 582335), (442, 579700), (520, 492745), (527, 486200), (550, 465868), (572, 447950), (578, 443300), (620, 413270), (650, 394196), (680, 376805), (682, 375700), (715, 358360), (748, 342550), (775, 330616), (806, 317900), (850, 301444), (884, 289850), (935, 274040), (1054, 243100), (1100, 232934), (1105, 231880), (1144, 223975), (1156, 221650), (1240, 206635), (1300, 197098), (1364, 187850), (1430, 179180), (1445, 177320), (1496, 171275), (1550, 165308), (1612, 158950), (1700, 150722), (1705, 150280), (1768, 144925), (1870, 137020), (2015, 127160), (2108, 121550), (2200, 116467), (2210, 115940), (2312, 110825), (2431, 105400), (2600, 98549), (2635, 97240), (2728, 93925), (2860, 89590), (2890, 88660), (3100, 82654), (3179, 80600), (3224, 79475), (3400, 75361), (3410, 75140), (3575, 71672), (3740, 68510), (3757, 68200), (4030, 63580), (4216, 60775), (4420, 57970), (4433, 57800), (4675, 54808), (4862, 52700), (5270, 48620), (5525, 46376), (5720, 44795), (5780, 44330), (5797, 44200), (6200, 41327), (6358, 40300), (6820, 37570), (6851, 37400), (7150, 35836), (7225, 35464), (7480, 34255), (7514, 34100), (8060, 31790), (8525, 30056), (8840, 28985), (8866, 28900), (8959, 28600), (9350, 27404), (9724, 26350), (10075, 25432), (10540, 24310), (11050, 23188), (11560, 22165), (11594, 22100), (12155, 21080), (12716, 20150), (13175, 19448), (13640, 18785), (13702, 18700), (14300, 17918), (14450, 17732), (15028, 17050), (15895, 16120)]