1399640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3181}}^1$

素因数の和:3203

約数の個数: 32

約数和(自身を含む): 3436560

約数和(自身を除く): 2036920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 3181, 6362, 12724, 15905, 25448, 31810, 34991, 63620, 69982, 127240, 139964, 174955, 279928, 349910, 699820, 1399640]

約数ペア:

[(1, 1399640), (2, 699820), (4, 349910), (5, 279928), (8, 174955), (10, 139964), (11, 127240), (20, 69982), (22, 63620), (40, 34991), (44, 31810), (55, 25448), (88, 15905), (110, 12724), (220, 6362), (440, 3181)]