31883440

素因数分解:

$2^4\times 5^1\times {\mathrm{398543}}^1$

素因数の和:398556

約数の個数: 20

約数和(自身を含む): 74129184

約数和(自身を除く): 42245744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398543, 797086, 1594172, 1992715, 3188344, 3985430, 6376688, 7970860, 15941720, 31883440]

約数ペア:

[(1, 31883440), (2, 15941720), (4, 7970860), (5, 6376688), (8, 3985430), (10, 3188344), (16, 1992715), (20, 1594172), (40, 797086), (80, 398543)]