28639490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23669}}^1$

素因数の和:23698

約数の個数: 24

約数和(自身を含む): 56665980

約数和(自身を除く): 28026490

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 23669, 47338, 118345, 236690, 260359, 520718, 1301795, 2603590, 2863949, 5727898, 14319745, 28639490]

約数ペア:

[(1, 28639490), (2, 14319745), (5, 5727898), (10, 2863949), (11, 2603590), (22, 1301795), (55, 520718), (110, 260359), (121, 236690), (242, 118345), (605, 47338), (1210, 23669)]