20703890

素因数分解:

$2^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{9041}}^1$

素因数の和:9277

約数の個数: 16

約数和(自身を含む): 37433880

約数和(自身を除く): 16729990

約数列:

[1, 2, 5, 10, 229, 458, 1145, 2290, 9041, 18082, 45205, 90410, 2070389, 4140778, 10351945, 20703890]

約数ペア:

[(1, 20703890), (2, 10351945), (5, 4140778), (10, 2070389), (229, 90410), (458, 45205), (1145, 18082), (2290, 9041)]