78156628

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 154566720

約数和(自身を除く): 76410092

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 101, 172, 202, 404, 409, 473, 818, 946, 1111, 1636, 1892, 2222, 4343, 4444, 4499, 8686, 8998, 17372, 17587, 17996, 35174, 41309, 47773, 70348, 82618, 95546, 165236, 191092, 193457, 386914, 454399, 773828, 908798, 1776287, 1817596, 3552574, 7105148, 19539157, 39078314, 78156628]

約数ペア:

[(1, 78156628), (2, 39078314), (4, 19539157), (11, 7105148), (22, 3552574), (43, 1817596), (44, 1776287), (86, 908798), (101, 773828), (172, 454399), (202, 386914), (404, 193457), (409, 191092), (473, 165236), (818, 95546), (946, 82618), (1111, 70348), (1636, 47773), (1892, 41309), (2222, 35174), (4343, 17996), (4444, 17587), (4499, 17372), (8686, 8998)]