18725824

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:413

約数の個数: 56

約数和(自身を含む): 40709088

約数和(自身を除く): 21983264

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 142, 208, 284, 317, 416, 568, 634, 832, 923, 1136, 1268, 1846, 2272, 2536, 3692, 4121, 4544, 5072, 7384, 8242, 10144, 14768, 16484, 20288, 22507, 29536, 32968, 45014, 59072, 65936, 90028, 131872, 180056, 263744, 292591, 360112, 585182, 720224, 1170364, 1440448, 2340728, 4681456, 9362912, 18725824]

約数ペア:

[(1, 18725824), (2, 9362912), (4, 4681456), (8, 2340728), (13, 1440448), (16, 1170364), (26, 720224), (32, 585182), (52, 360112), (64, 292591), (71, 263744), (104, 180056), (142, 131872), (208, 90028), (284, 65936), (317, 59072), (416, 45014), (568, 32968), (634, 29536), (832, 22507), (923, 20288), (1136, 16484), (1268, 14768), (1846, 10144), (2272, 8242), (2536, 7384), (3692, 5072), (4121, 4544)]