64126460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78203}}^1$

素因数の和:78253

約数の個数: 24

約数和(自身を含む): 137951856

約数和(自身を除く): 73825396

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 78203, 156406, 312812, 391015, 782030, 1564060, 3206323, 6412646, 12825292, 16031615, 32063230, 64126460]

約数ペア:

[(1, 64126460), (2, 32063230), (4, 16031615), (5, 12825292), (10, 6412646), (20, 3206323), (41, 1564060), (82, 782030), (164, 391015), (205, 312812), (410, 156406), (820, 78203)]