438994820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1995431}}^1$

素因数の和:1995451

約数の個数: 24

約数和(自身を含む): 1005697728

約数和(自身を除く): 566702908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1995431, 3990862, 7981724, 9977155, 19954310, 21949741, 39908620, 43899482, 87798964, 109748705, 219497410, 438994820]

約数ペア:

[(1, 438994820), (2, 219497410), (4, 109748705), (5, 87798964), (10, 43899482), (11, 39908620), (20, 21949741), (22, 19954310), (44, 9977155), (55, 7981724), (110, 3990862), (220, 1995431)]