18867804920

素因数分解:

$2^3\times 5^1\times {\mathrm{471695123}}^1$

素因数の和:471695134

約数の個数: 16

約数和(自身を含む): 42452561160

約数和(自身を除く): 23584756240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 471695123, 943390246, 1886780492, 2358475615, 3773560984, 4716951230, 9433902460, 18867804920]

約数ペア:

[(1, 18867804920), (2, 9433902460), (4, 4716951230), (5, 3773560984), (8, 2358475615), (10, 1886780492), (20, 943390246), (40, 471695123)]