1405962580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{20549}}^1$

素因数の和:20880

約数の個数: 48

約数和(自身を含む): 3231446400

約数和(自身を除く): 1825483820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 311, 622, 1244, 1555, 3110, 3421, 6220, 6842, 13684, 17105, 20549, 34210, 41098, 68420, 82196, 102745, 205490, 226039, 410980, 452078, 904156, 1130195, 2260390, 4520780, 6390739, 12781478, 25562956, 31953695, 63907390, 70298129, 127814780, 140596258, 281192516, 351490645, 702981290, 1405962580]

約数ペア:

[(1, 1405962580), (2, 702981290), (4, 351490645), (5, 281192516), (10, 140596258), (11, 127814780), (20, 70298129), (22, 63907390), (44, 31953695), (55, 25562956), (110, 12781478), (220, 6390739), (311, 4520780), (622, 2260390), (1244, 1130195), (1555, 904156), (3110, 452078), (3421, 410980), (6220, 226039), (6842, 205490), (13684, 102745), (17105, 82196), (20549, 68420), (34210, 41098)]