28656980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130259}}^1$

素因数の和:130279

約数の個数: 24

約数和(自身を含む): 65651040

約数和(自身を除く): 36994060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130259, 260518, 521036, 651295, 1302590, 1432849, 2605180, 2865698, 5731396, 7164245, 14328490, 28656980]

約数ペア:

[(1, 28656980), (2, 14328490), (4, 7164245), (5, 5731396), (10, 2865698), (11, 2605180), (20, 1432849), (22, 1302590), (44, 651295), (55, 521036), (110, 260518), (220, 130259)]