18984040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{24979}}^1$

素因数の和:25009

約数の個数: 32

約数和(自身を含む): 44964000

約数和(自身を除く): 25979960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 24979, 49958, 99916, 124895, 199832, 249790, 474601, 499580, 949202, 999160, 1898404, 2373005, 3796808, 4746010, 9492020, 18984040]

約数ペア:

[(1, 18984040), (2, 9492020), (4, 4746010), (5, 3796808), (8, 2373005), (10, 1898404), (19, 999160), (20, 949202), (38, 499580), (40, 474601), (76, 249790), (95, 199832), (152, 124895), (190, 99916), (380, 49958), (760, 24979)]