87680680

素因数分解:

$2^3\times 5^1\times {\mathrm{2192017}}^1$

素因数の和:2192028

約数の個数: 16

約数和(自身を含む): 197281620

約数和(自身を除く): 109600940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2192017, 4384034, 8768068, 10960085, 17536136, 21920170, 43840340, 87680680]

約数ペア:

[(1, 87680680), (2, 43840340), (4, 21920170), (5, 17536136), (8, 10960085), (10, 8768068), (20, 4384034), (40, 2192017)]