218435975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 305337600

約数和(自身を除く): 86901625

約数列:

[1, 5, 17, 25, 29, 37, 85, 145, 185, 425, 479, 493, 629, 725, 925, 1073, 2395, 2465, 3145, 5365, 8143, 11975, 12325, 13891, 15725, 17723, 18241, 26825, 40715, 69455, 88615, 91205, 203575, 236147, 301291, 347275, 443075, 456025, 513967, 1180735, 1506455, 2569835, 5903675, 7532275, 8737439, 12849175, 43687195, 218435975]

約数ペア:

[(1, 218435975), (5, 43687195), (17, 12849175), (25, 8737439), (29, 7532275), (37, 5903675), (85, 2569835), (145, 1506455), (185, 1180735), (425, 513967), (479, 456025), (493, 443075), (629, 347275), (725, 301291), (925, 236147), (1073, 203575), (2395, 91205), (2465, 88615), (3145, 69455), (5365, 40715), (8143, 26825), (11975, 18241), (12325, 17723), (13891, 15725)]