2851640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6481}}^1$

素因数の和:6503

約数の個数: 32

約数和(自身を含む): 7000560

約数和(自身を除く): 4148920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 6481, 12962, 25924, 32405, 51848, 64810, 71291, 129620, 142582, 259240, 285164, 356455, 570328, 712910, 1425820, 2851640]

約数ペア:

[(1, 2851640), (2, 1425820), (4, 712910), (5, 570328), (8, 356455), (10, 285164), (11, 259240), (20, 142582), (22, 129620), (40, 71291), (44, 64810), (55, 51848), (88, 32405), (110, 25924), (220, 12962), (440, 6481)]