20158096900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{857}}^1\times {\mathrm{5737}}^1$

素因数の和:6649

約数の個数: 72

約数和(自身を含む): 44870081256

約数和(自身を除く): 24711984356

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 857, 1025, 1714, 2050, 3428, 4100, 4285, 5737, 8570, 11474, 17140, 21425, 22948, 28685, 35137, 42850, 57370, 70274, 85700, 114740, 140548, 143425, 175685, 235217, 286850, 351370, 470434, 573700, 702740, 878425, 940868, 1176085, 1756850, 2352170, 3513700, 4704340, 4916609, 5880425, 9833218, 11760850, 19666436, 23521700, 24583045, 49166090, 98332180, 122915225, 201580969, 245830450, 403161938, 491660900, 806323876, 1007904845, 2015809690, 4031619380, 5039524225, 10079048450, 20158096900]

約数ペア:

[(1, 20158096900), (2, 10079048450), (4, 5039524225), (5, 4031619380), (10, 2015809690), (20, 1007904845), (25, 806323876), (41, 491660900), (50, 403161938), (82, 245830450), (100, 201580969), (164, 122915225), (205, 98332180), (410, 49166090), (820, 24583045), (857, 23521700), (1025, 19666436), (1714, 11760850), (2050, 9833218), (3428, 5880425), (4100, 4916609), (4285, 4704340), (5737, 3513700), (8570, 2352170), (11474, 1756850), (17140, 1176085), (21425, 940868), (22948, 878425), (28685, 702740), (35137, 573700), (42850, 470434), (57370, 351370), (70274, 286850), (85700, 235217), (114740, 175685), (140548, 143425)]