90212390

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{64901}}^1$

素因数の和:65047

約数の個数: 16

約数和(自身を含む): 163553040

約数和(自身を除く): 73340650

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 64901, 129802, 324505, 649010, 9021239, 18042478, 45106195, 90212390]

約数ペア:

[(1, 90212390), (2, 45106195), (5, 18042478), (10, 9021239), (139, 649010), (278, 324505), (695, 129802), (1390, 64901)]