20107910

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:428

約数の個数: 32

約数和(自身を含む): 37158912

約数和(自身を除く): 17051002

約数列:

[1, 2, 5, 10, 71, 127, 142, 223, 254, 355, 446, 635, 710, 1115, 1270, 2230, 9017, 15833, 18034, 28321, 31666, 45085, 56642, 79165, 90170, 141605, 158330, 283210, 2010791, 4021582, 10053955, 20107910]

約数ペア:

[(1, 20107910), (2, 10053955), (5, 4021582), (10, 2010791), (71, 283210), (127, 158330), (142, 141605), (223, 90170), (254, 79165), (355, 56642), (446, 45085), (635, 31666), (710, 28321), (1115, 18034), (1270, 15833), (2230, 9017)]