72377680

素因数分解:

$2^4\times 5^1\times {\mathrm{904721}}^1$

素因数の和:904734

約数の個数: 20

約数和(自身を含む): 168278292

約数和(自身を除く): 95900612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 904721, 1809442, 3618884, 4523605, 7237768, 9047210, 14475536, 18094420, 36188840, 72377680]

約数ペア:

[(1, 72377680), (2, 36188840), (4, 18094420), (5, 14475536), (8, 9047210), (10, 7237768), (16, 4523605), (20, 3618884), (40, 1809442), (80, 904721)]