140868040

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{8171}}^1$

素因数の和:8613

約数の個数: 32

約数和(自身を含む): 317727360

約数和(自身を除く): 176859320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 8171, 8620, 16342, 17240, 32684, 40855, 65368, 81710, 163420, 326840, 3521701, 7043402, 14086804, 17608505, 28173608, 35217010, 70434020, 140868040]

約数ペア:

[(1, 140868040), (2, 70434020), (4, 35217010), (5, 28173608), (8, 17608505), (10, 14086804), (20, 7043402), (40, 3521701), (431, 326840), (862, 163420), (1724, 81710), (2155, 65368), (3448, 40855), (4310, 32684), (8171, 17240), (8620, 16342)]