2557220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4409}}^1$

素因数の和:4447

約数の個数: 24

約数和(自身を含む): 5556600

約数和(自身を除く): 2999380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 4409, 8818, 17636, 22045, 44090, 88180, 127861, 255722, 511444, 639305, 1278610, 2557220]

約数ペア:

[(1, 2557220), (2, 1278610), (4, 639305), (5, 511444), (10, 255722), (20, 127861), (29, 88180), (58, 44090), (116, 22045), (145, 17636), (290, 8818), (580, 4409)]