20183120

素因数分解:

$2^4\times 5^1\times {\mathrm{252289}}^1$

素因数の和:252302

約数の個数: 20

約数和(自身を含む): 46925940

約数和(自身を除く): 26742820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252289, 504578, 1009156, 1261445, 2018312, 2522890, 4036624, 5045780, 10091560, 20183120]

約数ペア:

[(1, 20183120), (2, 10091560), (4, 5045780), (5, 4036624), (8, 2522890), (10, 2018312), (16, 1261445), (20, 1009156), (40, 504578), (80, 252289)]