18648220

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{5209}}^1$

素因数の和:5397

約数の個数: 24

約数和(自身を含む): 39387600

約数和(自身を除く): 20739380

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 5209, 10418, 20836, 26045, 52090, 104180, 932411, 1864822, 3729644, 4662055, 9324110, 18648220]

約数ペア:

[(1, 18648220), (2, 9324110), (4, 4662055), (5, 3729644), (10, 1864822), (20, 932411), (179, 104180), (358, 52090), (716, 26045), (895, 20836), (1790, 10418), (3580, 5209)]