25616445

素因数分解:

$3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 16684995

約数列:

[1, 3, 5, 15, 67, 71, 201, 213, 335, 355, 359, 1005, 1065, 1077, 1795, 4757, 5385, 14271, 23785, 24053, 25489, 71355, 72159, 76467, 120265, 127445, 360795, 382335, 1707763, 5123289, 8538815, 25616445]

約数ペア:

[(1, 25616445), (3, 8538815), (5, 5123289), (15, 1707763), (67, 382335), (71, 360795), (201, 127445), (213, 120265), (335, 76467), (355, 72159), (359, 71355), (1005, 25489), (1065, 24053), (1077, 23785), (1795, 14271), (4757, 5385)]