31367140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:964

約数の個数: 48

約数和(自身を含む): 75600000

約数和(自身を除く): 44232860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 449, 499, 898, 998, 1796, 1996, 2245, 2495, 3143, 3493, 4490, 4990, 6286, 6986, 8980, 9980, 12572, 13972, 15715, 17465, 31430, 34930, 62860, 69860, 224051, 448102, 896204, 1120255, 1568357, 2240510, 3136714, 4481020, 6273428, 7841785, 15683570, 31367140]

約数ペア:

[(1, 31367140), (2, 15683570), (4, 7841785), (5, 6273428), (7, 4481020), (10, 3136714), (14, 2240510), (20, 1568357), (28, 1120255), (35, 896204), (70, 448102), (140, 224051), (449, 69860), (499, 62860), (898, 34930), (998, 31430), (1796, 17465), (1996, 15715), (2245, 13972), (2495, 12572), (3143, 9980), (3493, 8980), (4490, 6986), (4990, 6286)]