31940080

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2543}}^1$

素因数の和:2713

約数の個数: 40

約数和(自身を含む): 74763072

約数和(自身を除く): 42822992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 2543, 3140, 5086, 6280, 10172, 12560, 12715, 20344, 25430, 40688, 50860, 101720, 203440, 399251, 798502, 1597004, 1996255, 3194008, 3992510, 6388016, 7985020, 15970040, 31940080]

約数ペア:

[(1, 31940080), (2, 15970040), (4, 7985020), (5, 6388016), (8, 3992510), (10, 3194008), (16, 1996255), (20, 1597004), (40, 798502), (80, 399251), (157, 203440), (314, 101720), (628, 50860), (785, 40688), (1256, 25430), (1570, 20344), (2512, 12715), (2543, 12560), (3140, 10172), (5086, 6280)]