408747275

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{2459}}^1$

素因数の和:2639

約数の個数: 24

約数和(自身を含む): 520093200

約数和(自身を除く): 111345925

約数列:

[1, 5, 25, 61, 109, 305, 545, 1525, 2459, 2725, 6649, 12295, 33245, 61475, 149999, 166225, 268031, 749995, 1340155, 3749975, 6700775, 16349891, 81749455, 408747275]

約数ペア:

[(1, 408747275), (5, 81749455), (25, 16349891), (61, 6700775), (109, 3749975), (305, 1340155), (545, 749995), (1525, 268031), (2459, 166225), (2725, 149999), (6649, 61475), (12295, 33245)]