138989680

素因数分解:

$2^4\times 5^1\times {\mathrm{1737371}}^1$

素因数の和:1737384

約数の個数: 20

約数和(自身を含む): 323151192

約数和(自身を除く): 184161512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1737371, 3474742, 6949484, 8686855, 13898968, 17373710, 27797936, 34747420, 69494840, 138989680]

約数ペア:

[(1, 138989680), (2, 69494840), (4, 34747420), (5, 27797936), (8, 17373710), (10, 13898968), (16, 8686855), (20, 6949484), (40, 3474742), (80, 1737371)]