11955640

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1163}}^1$

素因数の和:1431

約数の個数: 32

約数和(自身を含む): 27028080

約数和(自身を除く): 15072440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1163, 1285, 2056, 2326, 2570, 4652, 5140, 5815, 9304, 10280, 11630, 23260, 46520, 298891, 597782, 1195564, 1494455, 2391128, 2988910, 5977820, 11955640]

約数ペア:

[(1, 11955640), (2, 5977820), (4, 2988910), (5, 2391128), (8, 1494455), (10, 1195564), (20, 597782), (40, 298891), (257, 46520), (514, 23260), (1028, 11630), (1163, 10280), (1285, 9304), (2056, 5815), (2326, 5140), (2570, 4652)]