31158260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{487}}^1$

素因数の和:960

約数の個数: 48

約数和(自身を含む): 75097344

約数和(自身を除く): 43939084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 457, 487, 914, 974, 1828, 1948, 2285, 2435, 3199, 3409, 4570, 4870, 6398, 6818, 9140, 9740, 12796, 13636, 15995, 17045, 31990, 34090, 63980, 68180, 222559, 445118, 890236, 1112795, 1557913, 2225590, 3115826, 4451180, 6231652, 7789565, 15579130, 31158260]

約数ペア:

[(1, 31158260), (2, 15579130), (4, 7789565), (5, 6231652), (7, 4451180), (10, 3115826), (14, 2225590), (20, 1557913), (28, 1112795), (35, 890236), (70, 445118), (140, 222559), (457, 68180), (487, 63980), (914, 34090), (974, 31990), (1828, 17045), (1948, 15995), (2285, 13636), (2435, 12796), (3199, 9740), (3409, 9140), (4570, 6818), (4870, 6398)]