1285228750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{569}}^1$

素因数の和:743

約数の個数: 80

約数和(自身を含む): 2617599600

約数和(自身を除く): 1332370850

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 139, 250, 278, 325, 569, 625, 650, 695, 1138, 1250, 1390, 1625, 1807, 2845, 3250, 3475, 3614, 5690, 6950, 7397, 8125, 9035, 14225, 14794, 16250, 17375, 18070, 28450, 34750, 36985, 45175, 71125, 73970, 79091, 86875, 90350, 142250, 158182, 173750, 184925, 225875, 355625, 369850, 395455, 451750, 711250, 790910, 924625, 1028183, 1129375, 1849250, 1977275, 2056366, 2258750, 3954550, 4623125, 5140915, 9246250, 9886375, 10281830, 19772750, 25704575, 49431875, 51409150, 98863750, 128522875, 257045750, 642614375, 1285228750]

約数ペア:

[(1, 1285228750), (2, 642614375), (5, 257045750), (10, 128522875), (13, 98863750), (25, 51409150), (26, 49431875), (50, 25704575), (65, 19772750), (125, 10281830), (130, 9886375), (139, 9246250), (250, 5140915), (278, 4623125), (325, 3954550), (569, 2258750), (625, 2056366), (650, 1977275), (695, 1849250), (1138, 1129375), (1250, 1028183), (1390, 924625), (1625, 790910), (1807, 711250), (2845, 451750), (3250, 395455), (3475, 369850), (3614, 355625), (5690, 225875), (6950, 184925), (7397, 173750), (8125, 158182), (9035, 142250), (14225, 90350), (14794, 86875), (16250, 79091), (17375, 73970), (18070, 71125), (28450, 45175), (34750, 36985)]