28708875

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^2\times {\mathrm{151}}^1$

素因数の和:198

約数の個数: 72

約数和(自身を含む): 56410848

約数和(自身を除く): 27701973

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 151, 169, 195, 225, 325, 375, 453, 507, 585, 755, 845, 975, 1125, 1359, 1521, 1625, 1963, 2265, 2535, 2925, 3775, 4225, 4875, 5889, 6795, 7605, 9815, 11325, 12675, 14625, 17667, 18875, 21125, 25519, 29445, 33975, 38025, 49075, 56625, 63375, 76557, 88335, 127595, 147225, 169875, 190125, 229671, 245375, 382785, 441675, 637975, 736125, 1148355, 1913925, 2208375, 3189875, 5741775, 9569625, 28708875]

約数ペア:

[(1, 28708875), (3, 9569625), (5, 5741775), (9, 3189875), (13, 2208375), (15, 1913925), (25, 1148355), (39, 736125), (45, 637975), (65, 441675), (75, 382785), (117, 245375), (125, 229671), (151, 190125), (169, 169875), (195, 147225), (225, 127595), (325, 88335), (375, 76557), (453, 63375), (507, 56625), (585, 49075), (755, 38025), (845, 33975), (975, 29445), (1125, 25519), (1359, 21125), (1521, 18875), (1625, 17667), (1963, 14625), (2265, 12675), (2535, 11325), (2925, 9815), (3775, 7605), (4225, 6795), (4875, 5889)]