643696304

素因数分解:

$2^4\times {\mathrm{4441}}^1\times {\mathrm{9059}}^1$

素因数の和:13508

約数の個数: 20

約数和(自身を含む): 1247580120

約数和(自身を除く): 603883816

約数列:

[1, 2, 4, 8, 16, 4441, 8882, 9059, 17764, 18118, 35528, 36236, 71056, 72472, 144944, 40231019, 80462038, 160924076, 321848152, 643696304]

約数ペア:

[(1, 643696304), (2, 321848152), (4, 160924076), (8, 80462038), (16, 40231019), (4441, 144944), (8882, 72472), (9059, 71056), (17764, 36236), (18118, 35528)]