177970820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{379}}^1\times {\mathrm{443}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 382656960

約数和(自身を除く): 204686140

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 379, 443, 530, 758, 886, 1060, 1516, 1772, 1895, 2215, 3790, 4430, 7580, 8860, 20087, 23479, 40174, 46958, 80348, 93916, 100435, 117395, 167897, 200870, 234790, 335794, 401740, 469580, 671588, 839485, 1678970, 3357940, 8898541, 17797082, 35594164, 44492705, 88985410, 177970820]

約数ペア:

[(1, 177970820), (2, 88985410), (4, 44492705), (5, 35594164), (10, 17797082), (20, 8898541), (53, 3357940), (106, 1678970), (212, 839485), (265, 671588), (379, 469580), (443, 401740), (530, 335794), (758, 234790), (886, 200870), (1060, 167897), (1516, 117395), (1772, 100435), (1895, 93916), (2215, 80348), (3790, 46958), (4430, 40174), (7580, 23479), (8860, 20087)]