155717680

素因数分解:

$2^4\times 5^1\times {\mathrm{1946471}}^1$

素因数の和:1946484

約数の個数: 20

約数和(自身を含む): 362043792

約数和(自身を除く): 206326112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1946471, 3892942, 7785884, 9732355, 15571768, 19464710, 31143536, 38929420, 77858840, 155717680]

約数ペア:

[(1, 155717680), (2, 77858840), (4, 38929420), (5, 31143536), (8, 19464710), (10, 15571768), (16, 9732355), (20, 7785884), (40, 3892942), (80, 1946471)]