64703120

素因数分解:

$2^4\times 5^1\times {\mathrm{808789}}^1$

素因数の和:808802

約数の個数: 20

約数和(自身を含む): 150434940

約数和(自身を除く): 85731820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 808789, 1617578, 3235156, 4043945, 6470312, 8087890, 12940624, 16175780, 32351560, 64703120]

約数ペア:

[(1, 64703120), (2, 32351560), (4, 16175780), (5, 12940624), (8, 8087890), (10, 6470312), (16, 4043945), (20, 3235156), (40, 1617578), (80, 808789)]