28338575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 37564560

約数和(自身を除く): 9225985

約数列:

[1, 5, 17, 25, 85, 131, 425, 509, 655, 2227, 2545, 3275, 8653, 11135, 12725, 43265, 55675, 66679, 216325, 333395, 1133543, 1666975, 5667715, 28338575]

約数ペア:

[(1, 28338575), (5, 5667715), (17, 1666975), (25, 1133543), (85, 333395), (131, 216325), (425, 66679), (509, 55675), (655, 43265), (2227, 12725), (2545, 11135), (3275, 8653)]