401515990

素因数分解:

$2^1\times 5^1\times {\mathrm{641}}^1\times {\mathrm{62639}}^1$

素因数の和:63287

約数の個数: 16

約数和(自身を含む): 723867840

約数和(自身を除く): 322351850

約数列:

[1, 2, 5, 10, 641, 1282, 3205, 6410, 62639, 125278, 313195, 626390, 40151599, 80303198, 200757995, 401515990]

約数ペア:

[(1, 401515990), (2, 200757995), (5, 80303198), (10, 40151599), (641, 626390), (1282, 313195), (3205, 125278), (6410, 62639)]