20786690

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^2\times {\mathrm{941}}^1$

素因数の和:1042

約数の個数: 24

約数和(自身を含む): 38269692

約数和(自身を除く): 17483002

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 941, 1882, 2209, 4418, 4705, 9410, 11045, 22090, 44227, 88454, 221135, 442270, 2078669, 4157338, 10393345, 20786690]

約数ペア:

[(1, 20786690), (2, 10393345), (5, 4157338), (10, 2078669), (47, 442270), (94, 221135), (235, 88454), (470, 44227), (941, 22090), (1882, 11045), (2209, 9410), (4418, 4705)]