2181391875

素因数分解:

$3^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1297}}^1$

素因数の和:1359

約数の個数: 120

約数和(自身を含む): 4428007584

約数和(自身を除く): 2246615709

約数列:

[1, 3, 5, 9, 13, 15, 23, 25, 39, 45, 65, 69, 75, 115, 117, 125, 195, 207, 225, 299, 325, 345, 375, 575, 585, 625, 897, 975, 1035, 1125, 1297, 1495, 1625, 1725, 1875, 2691, 2875, 2925, 3891, 4485, 4875, 5175, 5625, 6485, 7475, 8125, 8625, 11673, 13455, 14375, 14625, 16861, 19455, 22425, 24375, 25875, 29831, 32425, 37375, 43125, 50583, 58365, 67275, 73125, 84305, 89493, 97275, 112125, 129375, 149155, 151749, 162125, 186875, 252915, 268479, 291825, 336375, 387803, 421525, 447465, 486375, 560625, 745775, 758745, 810625, 1163409, 1264575, 1342395, 1459125, 1681875, 1939015, 2107625, 2237325, 2431875, 3490227, 3728875, 3793725, 5817045, 6322875, 6711975, 7295625, 9695075, 10538125, 11186625, 17451135, 18644375, 18968625, 29085225, 31614375, 33559875, 48475375, 55933125, 87255675, 94843125, 145426125, 167799375, 242376875, 436278375, 727130625, 2181391875]

約数ペア:

[(1, 2181391875), (3, 727130625), (5, 436278375), (9, 242376875), (13, 167799375), (15, 145426125), (23, 94843125), (25, 87255675), (39, 55933125), (45, 48475375), (65, 33559875), (69, 31614375), (75, 29085225), (115, 18968625), (117, 18644375), (125, 17451135), (195, 11186625), (207, 10538125), (225, 9695075), (299, 7295625), (325, 6711975), (345, 6322875), (375, 5817045), (575, 3793725), (585, 3728875), (625, 3490227), (897, 2431875), (975, 2237325), (1035, 2107625), (1125, 1939015), (1297, 1681875), (1495, 1459125), (1625, 1342395), (1725, 1264575), (1875, 1163409), (2691, 810625), (2875, 758745), (2925, 745775), (3891, 560625), (4485, 486375), (4875, 447465), (5175, 421525), (5625, 387803), (6485, 336375), (7475, 291825), (8125, 268479), (8625, 252915), (11673, 186875), (13455, 162125), (14375, 151749), (14625, 149155), (16861, 129375), (19455, 112125), (22425, 97275), (24375, 89493), (25875, 84305), (29831, 73125), (32425, 67275), (37375, 58365), (43125, 50583)]