20219750

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{2609}}^1$

素因数の和:2657

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 18867610

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1550, 2609, 3875, 5218, 7750, 13045, 26090, 65225, 80879, 130450, 161758, 326125, 404395, 652250, 808790, 2021975, 4043950, 10109875, 20219750]

約数ペア:

[(1, 20219750), (2, 10109875), (5, 4043950), (10, 2021975), (25, 808790), (31, 652250), (50, 404395), (62, 326125), (125, 161758), (155, 130450), (250, 80879), (310, 65225), (775, 26090), (1550, 13045), (2609, 7750), (3875, 5218)]