31590320

素因数分解:

$2^4\times 5^1\times {\mathrm{394879}}^1$

素因数の和:394892

約数の個数: 20

約数和(自身を含む): 73447680

約数和(自身を除く): 41857360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 394879, 789758, 1579516, 1974395, 3159032, 3948790, 6318064, 7897580, 15795160, 31590320]

約数ペア:

[(1, 31590320), (2, 15795160), (4, 7897580), (5, 6318064), (8, 3948790), (10, 3159032), (16, 1974395), (20, 1579516), (40, 789758), (80, 394879)]