259616920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{158303}}^1$

素因数の和:158355

約数の個数: 32

約数和(自身を含む): 598389120

約数和(自身を除く): 338772200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 158303, 316606, 633212, 791515, 1266424, 1583030, 3166060, 6332120, 6490423, 12980846, 25961692, 32452115, 51923384, 64904230, 129808460, 259616920]

約数ペア:

[(1, 259616920), (2, 129808460), (4, 64904230), (5, 51923384), (8, 32452115), (10, 25961692), (20, 12980846), (40, 6490423), (41, 6332120), (82, 3166060), (164, 1583030), (205, 1266424), (328, 791515), (410, 633212), (820, 316606), (1640, 158303)]