81195790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 163586304

約数和(自身を除く): 82390514

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 97, 130, 137, 194, 235, 274, 470, 485, 611, 685, 970, 1222, 1261, 1370, 1781, 2522, 3055, 3562, 4559, 6110, 6305, 6439, 8905, 9118, 12610, 12878, 13289, 17810, 22795, 26578, 32195, 45590, 59267, 64390, 66445, 83707, 118534, 132890, 167414, 172757, 296335, 345514, 418535, 592670, 624583, 837070, 863785, 1249166, 1727570, 3122915, 6245830, 8119579, 16239158, 40597895, 81195790]

約数ペア:

[(1, 81195790), (2, 40597895), (5, 16239158), (10, 8119579), (13, 6245830), (26, 3122915), (47, 1727570), (65, 1249166), (94, 863785), (97, 837070), (130, 624583), (137, 592670), (194, 418535), (235, 345514), (274, 296335), (470, 172757), (485, 167414), (611, 132890), (685, 118534), (970, 83707), (1222, 66445), (1261, 64390), (1370, 59267), (1781, 45590), (2522, 32195), (3055, 26578), (3562, 22795), (4559, 17810), (6110, 13289), (6305, 12878), (6439, 12610), (8905, 9118)]