40394740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28447}}^1$

素因数の和:28527

約数の個数: 24

約数和(自身を含む): 86026752

約数和(自身を除く): 45632012

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 28447, 56894, 113788, 142235, 284470, 568940, 2019737, 4039474, 8078948, 10098685, 20197370, 40394740]

約数ペア:

[(1, 40394740), (2, 20197370), (4, 10098685), (5, 8078948), (10, 4039474), (20, 2019737), (71, 568940), (142, 284470), (284, 142235), (355, 113788), (710, 56894), (1420, 28447)]