72462020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{40709}}^1$

素因数の和:40807

約数の個数: 24

約数和(自身を含む): 153883800

約数和(自身を除く): 81421780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 40709, 81418, 162836, 203545, 407090, 814180, 3623101, 7246202, 14492404, 18115505, 36231010, 72462020]

約数ペア:

[(1, 72462020), (2, 36231010), (4, 18115505), (5, 14492404), (10, 7246202), (20, 3623101), (89, 814180), (178, 407090), (356, 203545), (445, 162836), (890, 81418), (1780, 40709)]