201229640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{122701}}^1$

素因数の和:122753

約数の個数: 32

約数和(自身を含む): 463813560

約数和(自身を除く): 262583920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 122701, 245402, 490804, 613505, 981608, 1227010, 2454020, 4908040, 5030741, 10061482, 20122964, 25153705, 40245928, 50307410, 100614820, 201229640]

約数ペア:

[(1, 201229640), (2, 100614820), (4, 50307410), (5, 40245928), (8, 25153705), (10, 20122964), (20, 10061482), (40, 5030741), (41, 4908040), (82, 2454020), (164, 1227010), (205, 981608), (328, 613505), (410, 490804), (820, 245402), (1640, 122701)]