20123090895

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{32720473}}^1$

素因数の和:32720522

約数の個数: 16

約数和(自身を含む): 32982237792

約数和(自身を除く): 12859146897

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 32720473, 98161419, 163602365, 490807095, 1341539393, 4024618179, 6707696965, 20123090895]

約数ペア:

[(1, 20123090895), (3, 6707696965), (5, 4024618179), (15, 1341539393), (41, 490807095), (123, 163602365), (205, 98161419), (615, 32720473)]