279280

素因数分解:

$2^4\times 5^1\times {\mathrm{3491}}^1$

素因数の和:3504

約数の個数: 20

約数和(自身を含む): 649512

約数和(自身を除く): 370232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3491, 6982, 13964, 17455, 27928, 34910, 55856, 69820, 139640, 279280]

約数ペア:

[(1, 279280), (2, 139640), (4, 69820), (5, 55856), (8, 34910), (10, 27928), (16, 17455), (20, 13964), (40, 6982), (80, 3491)]