19904570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1571}}^1$

素因数の和:1766

約数の個数: 32

約数和(自身を含む): 41198976

約数和(自身を除く): 21294406

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 181, 362, 905, 1267, 1571, 1810, 2534, 3142, 6335, 7855, 10997, 12670, 15710, 21994, 54985, 109970, 284351, 568702, 1421755, 1990457, 2843510, 3980914, 9952285, 19904570]

約数ペア:

[(1, 19904570), (2, 9952285), (5, 3980914), (7, 2843510), (10, 1990457), (14, 1421755), (35, 568702), (70, 284351), (181, 109970), (362, 54985), (905, 21994), (1267, 15710), (1571, 12670), (1810, 10997), (2534, 7855), (3142, 6335)]