123815240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{3221}}^1$

素因数の和:3294

約数の個数: 48

約数和(自身を含む): 287950140

約数和(自身を除く): 164134900

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3221, 3844, 4805, 6442, 7688, 9610, 12884, 16105, 19220, 25768, 32210, 38440, 64420, 99851, 128840, 199702, 399404, 499255, 798808, 998510, 1997020, 3095381, 3994040, 6190762, 12381524, 15476905, 24763048, 30953810, 61907620, 123815240]

約数ペア:

[(1, 123815240), (2, 61907620), (4, 30953810), (5, 24763048), (8, 15476905), (10, 12381524), (20, 6190762), (31, 3994040), (40, 3095381), (62, 1997020), (124, 998510), (155, 798808), (248, 499255), (310, 399404), (620, 199702), (961, 128840), (1240, 99851), (1922, 64420), (3221, 38440), (3844, 32210), (4805, 25768), (6442, 19220), (7688, 16105), (9610, 12884)]