81811264

素因数分解:

$2^6\times {\mathrm{19}}^2\times {\mathrm{3541}}^1$

素因数の和:3591

約数の個数: 42

約数和(自身を含む): 171386754

約数和(自身を除く): 89575490

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 152, 304, 361, 608, 722, 1216, 1444, 2888, 3541, 5776, 7082, 11552, 14164, 23104, 28328, 56656, 67279, 113312, 134558, 226624, 269116, 538232, 1076464, 1278301, 2152928, 2556602, 4305856, 5113204, 10226408, 20452816, 40905632, 81811264]

約数ペア:

[(1, 81811264), (2, 40905632), (4, 20452816), (8, 10226408), (16, 5113204), (19, 4305856), (32, 2556602), (38, 2152928), (64, 1278301), (76, 1076464), (152, 538232), (304, 269116), (361, 226624), (608, 134558), (722, 113312), (1216, 67279), (1444, 56656), (2888, 28328), (3541, 23104), (5776, 14164), (7082, 11552)]