19923640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45281}}^1$

素因数の和:45303

約数の個数: 32

約数和(自身を含む): 48904560

約数和(自身を除く): 28980920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45281, 90562, 181124, 226405, 362248, 452810, 498091, 905620, 996182, 1811240, 1992364, 2490455, 3984728, 4980910, 9961820, 19923640]

約数ペア:

[(1, 19923640), (2, 9961820), (4, 4980910), (5, 3984728), (8, 2490455), (10, 1992364), (11, 1811240), (20, 996182), (22, 905620), (40, 498091), (44, 452810), (55, 362248), (88, 226405), (110, 181124), (220, 90562), (440, 45281)]