78865820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2579}}^1$

素因数の和:2738

約数の個数: 48

約数和(自身を含む): 182044800

約数和(自身を除く): 103178980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1390, 1529, 2579, 2780, 3058, 5158, 6116, 7645, 10316, 12895, 15290, 25790, 28369, 30580, 51580, 56738, 113476, 141845, 283690, 358481, 567380, 716962, 1433924, 1792405, 3584810, 3943291, 7169620, 7886582, 15773164, 19716455, 39432910, 78865820]

約数ペア:

[(1, 78865820), (2, 39432910), (4, 19716455), (5, 15773164), (10, 7886582), (11, 7169620), (20, 3943291), (22, 3584810), (44, 1792405), (55, 1433924), (110, 716962), (139, 567380), (220, 358481), (278, 283690), (556, 141845), (695, 113476), (1390, 56738), (1529, 51580), (2579, 30580), (2780, 28369), (3058, 25790), (5158, 15290), (6116, 12895), (7645, 10316)]