31858280

素因数分解:

$2^3\times 5^1\times {\mathrm{647}}^1\times {\mathrm{1231}}^1$

素因数の和:1889

約数の個数: 32

約数和(自身を含む): 71850240

約数和(自身を除く): 39991960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 647, 1231, 1294, 2462, 2588, 3235, 4924, 5176, 6155, 6470, 9848, 12310, 12940, 24620, 25880, 49240, 796457, 1592914, 3185828, 3982285, 6371656, 7964570, 15929140, 31858280]

約数ペア:

[(1, 31858280), (2, 15929140), (4, 7964570), (5, 6371656), (8, 3982285), (10, 3185828), (20, 1592914), (40, 796457), (647, 49240), (1231, 25880), (1294, 24620), (2462, 12940), (2588, 12310), (3235, 9848), (4924, 6470), (5176, 6155)]