81526900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:99

約数の個数: 216

約数和(自身を含む): 238762496

約数和(自身を除く): 157235596

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 25, 26, 28, 31, 34, 35, 50, 52, 62, 65, 68, 70, 85, 91, 100, 119, 124, 130, 140, 155, 170, 175, 182, 217, 221, 238, 260, 289, 310, 325, 340, 350, 364, 403, 425, 434, 442, 455, 476, 527, 578, 595, 620, 650, 700, 775, 806, 850, 868, 884, 910, 1054, 1085, 1105, 1156, 1190, 1300, 1445, 1547, 1550, 1612, 1700, 1820, 2015, 2023, 2108, 2170, 2210, 2275, 2380, 2635, 2821, 2890, 2975, 3094, 3100, 3689, 3757, 4030, 4046, 4340, 4420, 4550, 5270, 5425, 5525, 5642, 5780, 5950, 6188, 6851, 7225, 7378, 7514, 7735, 8060, 8092, 8959, 9100, 10075, 10115, 10540, 10850, 11050, 11284, 11900, 13175, 13702, 14105, 14450, 14756, 15028, 15470, 17918, 18445, 18785, 20150, 20230, 21700, 22100, 26299, 26350, 27404, 28210, 28900, 30940, 34255, 35836, 36890, 37570, 38675, 40300, 40460, 44795, 47957, 50575, 52598, 52700, 56420, 62713, 68510, 70525, 73780, 75140, 77350, 89590, 92225, 93925, 95914, 101150, 105196, 116467, 125426, 131495, 137020, 141050, 154700, 171275, 179180, 184450, 187850, 191828, 202300, 223975, 232934, 239785, 250852, 262990, 282100, 313565, 342550, 368900, 375700, 447950, 465868, 479570, 525980, 582335, 627130, 657475, 685100, 815269, 895900, 959140, 1164670, 1198925, 1254260, 1314950, 1567825, 1630538, 2329340, 2397850, 2629900, 2911675, 3135650, 3261076, 4076345, 4795700, 5823350, 6271300, 8152690, 11646700, 16305380, 20381725, 40763450, 81526900]

約数ペア:

[(1, 81526900), (2, 40763450), (4, 20381725), (5, 16305380), (7, 11646700), (10, 8152690), (13, 6271300), (14, 5823350), (17, 4795700), (20, 4076345), (25, 3261076), (26, 3135650), (28, 2911675), (31, 2629900), (34, 2397850), (35, 2329340), (50, 1630538), (52, 1567825), (62, 1314950), (65, 1254260), (68, 1198925), (70, 1164670), (85, 959140), (91, 895900), (100, 815269), (119, 685100), (124, 657475), (130, 627130), (140, 582335), (155, 525980), (170, 479570), (175, 465868), (182, 447950), (217, 375700), (221, 368900), (238, 342550), (260, 313565), (289, 282100), (310, 262990), (325, 250852), (340, 239785), (350, 232934), (364, 223975), (403, 202300), (425, 191828), (434, 187850), (442, 184450), (455, 179180), (476, 171275), (527, 154700), (578, 141050), (595, 137020), (620, 131495), (650, 125426), (700, 116467), (775, 105196), (806, 101150), (850, 95914), (868, 93925), (884, 92225), (910, 89590), (1054, 77350), (1085, 75140), (1105, 73780), (1156, 70525), (1190, 68510), (1300, 62713), (1445, 56420), (1547, 52700), (1550, 52598), (1612, 50575), (1700, 47957), (1820, 44795), (2015, 40460), (2023, 40300), (2108, 38675), (2170, 37570), (2210, 36890), (2275, 35836), (2380, 34255), (2635, 30940), (2821, 28900), (2890, 28210), (2975, 27404), (3094, 26350), (3100, 26299), (3689, 22100), (3757, 21700), (4030, 20230), (4046, 20150), (4340, 18785), (4420, 18445), (4550, 17918), (5270, 15470), (5425, 15028), (5525, 14756), (5642, 14450), (5780, 14105), (5950, 13702), (6188, 13175), (6851, 11900), (7225, 11284), (7378, 11050), (7514, 10850), (7735, 10540), (8060, 10115), (8092, 10075), (8959, 9100)]