20290784

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1451}}^1$

素因数の和:1503

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 23617696

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 76, 92, 152, 184, 304, 368, 437, 608, 736, 874, 1451, 1748, 2902, 3496, 5804, 6992, 11608, 13984, 23216, 27569, 33373, 46432, 55138, 66746, 110276, 133492, 220552, 266984, 441104, 533968, 634087, 882208, 1067936, 1268174, 2536348, 5072696, 10145392, 20290784]

約数ペア:

[(1, 20290784), (2, 10145392), (4, 5072696), (8, 2536348), (16, 1268174), (19, 1067936), (23, 882208), (32, 634087), (38, 533968), (46, 441104), (76, 266984), (92, 220552), (152, 133492), (184, 110276), (304, 66746), (368, 55138), (437, 46432), (608, 33373), (736, 27569), (874, 23216), (1451, 13984), (1748, 11608), (2902, 6992), (3496, 5804)]