12919875

素因数分解:

$3^1\times 5^3\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 21745152

約数和(自身を除く): 8825277

約数列:

[1, 3, 5, 15, 25, 75, 125, 131, 263, 375, 393, 655, 789, 1315, 1965, 3275, 3945, 6575, 9825, 16375, 19725, 32875, 34453, 49125, 98625, 103359, 172265, 516795, 861325, 2583975, 4306625, 12919875]

約数ペア:

[(1, 12919875), (3, 4306625), (5, 2583975), (15, 861325), (25, 516795), (75, 172265), (125, 103359), (131, 98625), (263, 49125), (375, 34453), (393, 32875), (655, 19725), (789, 16375), (1315, 9825), (1965, 6575), (3275, 3945)]