42720325

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 55155200

約数和(自身を除く): 12434875

約数列:

[1, 5, 25, 31, 155, 199, 277, 775, 995, 1385, 4975, 6169, 6925, 8587, 30845, 42935, 55123, 154225, 214675, 275615, 1378075, 1708813, 8544065, 42720325]

約数ペア:

[(1, 42720325), (5, 8544065), (25, 1708813), (31, 1378075), (155, 275615), (199, 214675), (277, 154225), (775, 55123), (995, 42935), (1385, 30845), (4975, 8587), (6169, 6925)]