72905920

素因数分解:

$2^6\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1663}}^1$

素因数の和:1817

約数の個数: 56

約数和(自身を含む): 174979584

約数和(自身を除く): 102073664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 137, 160, 274, 320, 548, 685, 1096, 1370, 1663, 2192, 2740, 3326, 4384, 5480, 6652, 8315, 8768, 10960, 13304, 16630, 21920, 26608, 33260, 43840, 53216, 66520, 106432, 133040, 227831, 266080, 455662, 532160, 911324, 1139155, 1822648, 2278310, 3645296, 4556620, 7290592, 9113240, 14581184, 18226480, 36452960, 72905920]

約数ペア:

[(1, 72905920), (2, 36452960), (4, 18226480), (5, 14581184), (8, 9113240), (10, 7290592), (16, 4556620), (20, 3645296), (32, 2278310), (40, 1822648), (64, 1139155), (80, 911324), (137, 532160), (160, 455662), (274, 266080), (320, 227831), (548, 133040), (685, 106432), (1096, 66520), (1370, 53216), (1663, 43840), (2192, 33260), (2740, 26608), (3326, 21920), (4384, 16630), (5480, 13304), (6652, 10960), (8315, 8768)]