1870290440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1140421}}^1$

素因数の和:1140473

約数の個数: 32

約数和(自身を含む): 4310795160

約数和(自身を除く): 2440504720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1140421, 2280842, 4561684, 5702105, 9123368, 11404210, 22808420, 45616840, 46757261, 93514522, 187029044, 233786305, 374058088, 467572610, 935145220, 1870290440]

約数ペア:

[(1, 1870290440), (2, 935145220), (4, 467572610), (5, 374058088), (8, 233786305), (10, 187029044), (20, 93514522), (40, 46757261), (41, 45616840), (82, 22808420), (164, 11404210), (205, 9123368), (328, 5702105), (410, 4561684), (820, 2280842), (1640, 1140421)]