40319120

素因数分解:

$2^4\times 5^1\times {\mathrm{503989}}^1$

素因数の和:504002

約数の個数: 20

約数和(自身を含む): 93742140

約数和(自身を除く): 53423020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 503989, 1007978, 2015956, 2519945, 4031912, 5039890, 8063824, 10079780, 20159560, 40319120]

約数ペア:

[(1, 40319120), (2, 20159560), (4, 10079780), (5, 8063824), (8, 5039890), (10, 4031912), (16, 2519945), (20, 2015956), (40, 1007978), (80, 503989)]