28629320

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4391}}^1$

素因数の和:4565

約数の個数: 32

約数和(自身を含む): 64825920

約数和(自身を除く): 36196600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 4391, 6520, 8782, 17564, 21955, 35128, 43910, 87820, 175640, 715733, 1431466, 2862932, 3578665, 5725864, 7157330, 14314660, 28629320]

約数ペア:

[(1, 28629320), (2, 14314660), (4, 7157330), (5, 5725864), (8, 3578665), (10, 2862932), (20, 1431466), (40, 715733), (163, 175640), (326, 87820), (652, 43910), (815, 35128), (1304, 21955), (1630, 17564), (3260, 8782), (4391, 6520)]