12991875

素因数分解:

$3^1\times 5^4\times {\mathrm{13}}^2\times {\mathrm{41}}^1$

素因数の和:90

約数の個数: 60

約数和(自身を含む): 24011064

約数和(自身を除く): 11019189

約数列:

[1, 3, 5, 13, 15, 25, 39, 41, 65, 75, 123, 125, 169, 195, 205, 325, 375, 507, 533, 615, 625, 845, 975, 1025, 1599, 1625, 1875, 2535, 2665, 3075, 4225, 4875, 5125, 6929, 7995, 8125, 12675, 13325, 15375, 20787, 21125, 24375, 25625, 34645, 39975, 63375, 66625, 76875, 103935, 105625, 173225, 199875, 316875, 333125, 519675, 866125, 999375, 2598375, 4330625, 12991875]

約数ペア:

[(1, 12991875), (3, 4330625), (5, 2598375), (13, 999375), (15, 866125), (25, 519675), (39, 333125), (41, 316875), (65, 199875), (75, 173225), (123, 105625), (125, 103935), (169, 76875), (195, 66625), (205, 63375), (325, 39975), (375, 34645), (507, 25625), (533, 24375), (615, 21125), (625, 20787), (845, 15375), (975, 13325), (1025, 12675), (1599, 8125), (1625, 7995), (1875, 6929), (2535, 5125), (2665, 4875), (3075, 4225)]