211673860

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{229}}^1\times {\mathrm{409}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 451508400

約数和(自身を除く): 239834540

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 229, 409, 452, 458, 565, 818, 916, 1130, 1145, 1636, 2045, 2260, 2290, 4090, 4580, 8180, 25877, 46217, 51754, 92434, 93661, 103508, 129385, 184868, 187322, 231085, 258770, 374644, 462170, 468305, 517540, 924340, 936610, 1873220, 10583693, 21167386, 42334772, 52918465, 105836930, 211673860]

約数ペア:

[(1, 211673860), (2, 105836930), (4, 52918465), (5, 42334772), (10, 21167386), (20, 10583693), (113, 1873220), (226, 936610), (229, 924340), (409, 517540), (452, 468305), (458, 462170), (565, 374644), (818, 258770), (916, 231085), (1130, 187322), (1145, 184868), (1636, 129385), (2045, 103508), (2260, 93661), (2290, 92434), (4090, 51754), (4580, 46217), (8180, 25877)]