27852820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 60540480

約数和(自身を除く): 32687660

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 139, 172, 215, 233, 278, 430, 466, 556, 695, 860, 932, 1165, 1390, 2330, 2780, 4660, 5977, 10019, 11954, 20038, 23908, 29885, 32387, 40076, 50095, 59770, 64774, 100190, 119540, 129548, 161935, 200380, 323870, 647740, 1392641, 2785282, 5570564, 6963205, 13926410, 27852820]

約数ペア:

[(1, 27852820), (2, 13926410), (4, 6963205), (5, 5570564), (10, 2785282), (20, 1392641), (43, 647740), (86, 323870), (139, 200380), (172, 161935), (215, 129548), (233, 119540), (278, 100190), (430, 64774), (466, 59770), (556, 50095), (695, 40076), (860, 32387), (932, 29885), (1165, 23908), (1390, 20038), (2330, 11954), (2780, 10019), (4660, 5977)]