30758920

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1579}}^1$

素因数の和:2077

約数の個数: 32

約数和(自身を含む): 69393600

約数和(自身を除く): 38634680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1579, 1948, 2435, 3158, 3896, 4870, 6316, 7895, 9740, 12632, 15790, 19480, 31580, 63160, 768973, 1537946, 3075892, 3844865, 6151784, 7689730, 15379460, 30758920]

約数ペア:

[(1, 30758920), (2, 15379460), (4, 7689730), (5, 6151784), (8, 3844865), (10, 3075892), (20, 1537946), (40, 768973), (487, 63160), (974, 31580), (1579, 19480), (1948, 15790), (2435, 12632), (3158, 9740), (3896, 7895), (4870, 6316)]