31237780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{5189}}^1$

素因数の和:5248

約数の個数: 48

約数和(自身を含む): 76728960

約数和(自身を除く): 45491180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 5189, 6020, 10378, 20756, 25945, 36323, 51890, 72646, 103780, 145292, 181615, 223127, 363230, 446254, 726460, 892508, 1115635, 1561889, 2231270, 3123778, 4462540, 6247556, 7809445, 15618890, 31237780]

約数ペア:

[(1, 31237780), (2, 15618890), (4, 7809445), (5, 6247556), (7, 4462540), (10, 3123778), (14, 2231270), (20, 1561889), (28, 1115635), (35, 892508), (43, 726460), (70, 446254), (86, 363230), (140, 223127), (172, 181615), (215, 145292), (301, 103780), (430, 72646), (602, 51890), (860, 36323), (1204, 25945), (1505, 20756), (3010, 10378), (5189, 6020)]