81633480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2647}}^1$

素因数の和:2918

約数の個数: 64

約数和(自身を含む): 245946240

約数和(自身を除く): 164312760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 771, 1028, 1285, 1542, 2056, 2570, 2647, 3084, 3855, 5140, 5294, 6168, 7710, 7941, 10280, 10588, 13235, 15420, 15882, 21176, 26470, 30840, 31764, 39705, 52940, 63528, 79410, 105880, 158820, 317640, 680279, 1360558, 2040837, 2721116, 3401395, 4081674, 5442232, 6802790, 8163348, 10204185, 13605580, 16326696, 20408370, 27211160, 40816740, 81633480]

約数ペア:

[(1, 81633480), (2, 40816740), (3, 27211160), (4, 20408370), (5, 16326696), (6, 13605580), (8, 10204185), (10, 8163348), (12, 6802790), (15, 5442232), (20, 4081674), (24, 3401395), (30, 2721116), (40, 2040837), (60, 1360558), (120, 680279), (257, 317640), (514, 158820), (771, 105880), (1028, 79410), (1285, 63528), (1542, 52940), (2056, 39705), (2570, 31764), (2647, 30840), (3084, 26470), (3855, 21176), (5140, 15882), (5294, 15420), (6168, 13235), (7710, 10588), (7941, 10280)]