218974390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{706369}}^1$

素因数の和:706407

約数の個数: 16

約数和(自身を含む): 406869120

約数和(自身を除く): 187894730

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 706369, 1412738, 3531845, 7063690, 21897439, 43794878, 109487195, 218974390]

約数ペア:

[(1, 218974390), (2, 109487195), (5, 43794878), (10, 21897439), (31, 7063690), (62, 3531845), (155, 1412738), (310, 706369)]