72679640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{165181}}^1$

素因数の和:165203

約数の個数: 32

約数和(自身を含む): 178396560

約数和(自身を除く): 105716920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 165181, 330362, 660724, 825905, 1321448, 1651810, 1816991, 3303620, 3633982, 6607240, 7267964, 9084955, 14535928, 18169910, 36339820, 72679640]

約数ペア:

[(1, 72679640), (2, 36339820), (4, 18169910), (5, 14535928), (8, 9084955), (10, 7267964), (11, 6607240), (20, 3633982), (22, 3303620), (40, 1816991), (44, 1651810), (55, 1321448), (88, 825905), (110, 660724), (220, 330362), (440, 165181)]