20950120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30809}}^1$

素因数の和:30837

約数の個数: 32

約数和(自身を含む): 49912200

約数和(自身を除く): 28962080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30809, 61618, 123236, 154045, 246472, 308090, 523753, 616180, 1047506, 1232360, 2095012, 2618765, 4190024, 5237530, 10475060, 20950120]

約数ペア:

[(1, 20950120), (2, 10475060), (4, 5237530), (5, 4190024), (8, 2618765), (10, 2095012), (17, 1232360), (20, 1047506), (34, 616180), (40, 523753), (68, 308090), (85, 246472), (136, 154045), (170, 123236), (340, 61618), (680, 30809)]