28168820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13163}}^1$

素因数の和:13279

約数の個数: 24

約数和(自身を含む): 59711904

約数和(自身を除く): 31543084

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 13163, 26326, 52652, 65815, 131630, 263260, 1408441, 2816882, 5633764, 7042205, 14084410, 28168820]

約数ペア:

[(1, 28168820), (2, 14084410), (4, 7042205), (5, 5633764), (10, 2816882), (20, 1408441), (107, 263260), (214, 131630), (428, 65815), (535, 52652), (1070, 26326), (2140, 13163)]