181286740

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1\times {\mathrm{547}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 388325952

約数和(自身を除く): 207039212

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 227, 292, 365, 454, 547, 730, 908, 1094, 1135, 1460, 2188, 2270, 2735, 4540, 5470, 10940, 16571, 33142, 39931, 66284, 79862, 82855, 124169, 159724, 165710, 199655, 248338, 331420, 399310, 496676, 620845, 798620, 1241690, 2483380, 9064337, 18128674, 36257348, 45321685, 90643370, 181286740]

約数ペア:

[(1, 181286740), (2, 90643370), (4, 45321685), (5, 36257348), (10, 18128674), (20, 9064337), (73, 2483380), (146, 1241690), (227, 798620), (292, 620845), (365, 496676), (454, 399310), (547, 331420), (730, 248338), (908, 199655), (1094, 165710), (1135, 159724), (1460, 124169), (2188, 82855), (2270, 79862), (2735, 66284), (4540, 39931), (5470, 33142), (10940, 16571)]