394018990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1271029}}^1$

素因数の和:1271067

約数の個数: 16

約数和(自身を含む): 732113280

約数和(自身を除く): 338094290

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 1271029, 2542058, 6355145, 12710290, 39401899, 78803798, 197009495, 394018990]

約数ペア:

[(1, 394018990), (2, 197009495), (5, 78803798), (10, 39401899), (31, 12710290), (62, 6355145), (155, 2542058), (310, 1271029)]