18447160

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4231}}^1$

素因数の和:4351

約数の個数: 32

約数和(自身を含む): 41896800

約数和(自身を除く): 23449640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4231, 4360, 8462, 16924, 21155, 33848, 42310, 84620, 169240, 461179, 922358, 1844716, 2305895, 3689432, 4611790, 9223580, 18447160]

約数ペア:

[(1, 18447160), (2, 9223580), (4, 4611790), (5, 3689432), (8, 2305895), (10, 1844716), (20, 922358), (40, 461179), (109, 169240), (218, 84620), (436, 42310), (545, 33848), (872, 21155), (1090, 16924), (2180, 8462), (4231, 4360)]