20390512

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{827}}^1$

素因数の和:925

約数の個数: 40

約数和(自身を含む): 41890176

約数和(自身を除く): 21499664

約数列:

[1, 2, 4, 8, 16, 23, 46, 67, 92, 134, 184, 268, 368, 536, 827, 1072, 1541, 1654, 3082, 3308, 6164, 6616, 12328, 13232, 19021, 24656, 38042, 55409, 76084, 110818, 152168, 221636, 304336, 443272, 886544, 1274407, 2548814, 5097628, 10195256, 20390512]

約数ペア:

[(1, 20390512), (2, 10195256), (4, 5097628), (8, 2548814), (16, 1274407), (23, 886544), (46, 443272), (67, 304336), (92, 221636), (134, 152168), (184, 110818), (268, 76084), (368, 55409), (536, 38042), (827, 24656), (1072, 19021), (1541, 13232), (1654, 12328), (3082, 6616), (3308, 6164)]