211320640

素因数分解:

$2^6\times 5^1\times {\mathrm{660377}}^1$

素因数の和:660394

約数の個数: 28

約数和(自身を含む): 503208036

約数和(自身を除く): 291887396

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 660377, 1320754, 2641508, 3301885, 5283016, 6603770, 10566032, 13207540, 21132064, 26415080, 42264128, 52830160, 105660320, 211320640]

約数ペア:

[(1, 211320640), (2, 105660320), (4, 52830160), (5, 42264128), (8, 26415080), (10, 21132064), (16, 13207540), (20, 10566032), (32, 6603770), (40, 5283016), (64, 3301885), (80, 2641508), (160, 1320754), (320, 660377)]