71609180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 153861120

約数和(自身を除く): 82251940

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 211, 239, 284, 355, 422, 478, 710, 844, 956, 1055, 1195, 1420, 2110, 2390, 4220, 4780, 14981, 16969, 29962, 33938, 50429, 59924, 67876, 74905, 84845, 100858, 149810, 169690, 201716, 252145, 299620, 339380, 504290, 1008580, 3580459, 7160918, 14321836, 17902295, 35804590, 71609180]

約数ペア:

[(1, 71609180), (2, 35804590), (4, 17902295), (5, 14321836), (10, 7160918), (20, 3580459), (71, 1008580), (142, 504290), (211, 339380), (239, 299620), (284, 252145), (355, 201716), (422, 169690), (478, 149810), (710, 100858), (844, 84845), (956, 74905), (1055, 67876), (1195, 59924), (1420, 50429), (2110, 33938), (2390, 29962), (4220, 16969), (4780, 14981)]