264877640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{213611}}^1$

素因数の和:213653

約数の個数: 32

約数和(自身を含む): 615202560

約数和(自身を除く): 350324920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 213611, 427222, 854444, 1068055, 1708888, 2136110, 4272220, 6621941, 8544440, 13243882, 26487764, 33109705, 52975528, 66219410, 132438820, 264877640]

約数ペア:

[(1, 264877640), (2, 132438820), (4, 66219410), (5, 52975528), (8, 33109705), (10, 26487764), (20, 13243882), (31, 8544440), (40, 6621941), (62, 4272220), (124, 2136110), (155, 1708888), (248, 1068055), (310, 854444), (620, 427222), (1240, 213611)]