18861340

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{4229}}^1$

素因数の和:4461

約数の個数: 24

約数和(自身を含む): 39795840

約数和(自身を除く): 20934500

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4229, 4460, 8458, 16916, 21145, 42290, 84580, 943067, 1886134, 3772268, 4715335, 9430670, 18861340]

約数ペア:

[(1, 18861340), (2, 9430670), (4, 4715335), (5, 3772268), (10, 1886134), (20, 943067), (223, 84580), (446, 42290), (892, 21145), (1115, 16916), (2230, 8458), (4229, 4460)]