206702980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{631}}^1\times {\mathrm{1489}}^1$

素因数の和:2140

約数の個数: 48

約数和(自身を含む): 474606720

約数和(自身を除く): 267903740

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 631, 1262, 1489, 2524, 2978, 3155, 5956, 6310, 6941, 7445, 12620, 13882, 14890, 16379, 27764, 29780, 32758, 34705, 65516, 69410, 81895, 138820, 163790, 327580, 939559, 1879118, 3758236, 4697795, 9395590, 10335149, 18791180, 20670298, 41340596, 51675745, 103351490, 206702980]

約数ペア:

[(1, 206702980), (2, 103351490), (4, 51675745), (5, 41340596), (10, 20670298), (11, 18791180), (20, 10335149), (22, 9395590), (44, 4697795), (55, 3758236), (110, 1879118), (220, 939559), (631, 327580), (1262, 163790), (1489, 138820), (2524, 81895), (2978, 69410), (3155, 65516), (5956, 34705), (6310, 32758), (6941, 29780), (7445, 27764), (12620, 16379), (13882, 14890)]