78928390

素因数分解:

$2^1\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{6991}}^1$

素因数の和:8127

約数の個数: 16

約数和(自身を含む): 142217280

約数和(自身を除く): 63288890

約数列:

[1, 2, 5, 10, 1129, 2258, 5645, 6991, 11290, 13982, 34955, 69910, 7892839, 15785678, 39464195, 78928390]

約数ペア:

[(1, 78928390), (2, 39464195), (5, 15785678), (10, 7892839), (1129, 69910), (2258, 34955), (5645, 13982), (6991, 11290)]