20600870

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2083}}^1$

素因数の和:2156

約数の個数: 32

約数和(自身を含む): 39612672

約数和(自身を除く): 19011802

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 989, 1978, 2083, 4166, 4945, 9890, 10415, 20830, 47909, 89569, 95818, 179138, 239545, 447845, 479090, 895690, 2060087, 4120174, 10300435, 20600870]

約数ペア:

[(1, 20600870), (2, 10300435), (5, 4120174), (10, 2060087), (23, 895690), (43, 479090), (46, 447845), (86, 239545), (115, 179138), (215, 95818), (230, 89569), (430, 47909), (989, 20830), (1978, 10415), (2083, 9890), (4166, 4945)]