81320460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{761}}^1$

素因数の和:923

約数の個数: 96

約数和(自身を含む): 247326912

約数和(自身を除く): 166006452

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 137, 156, 195, 260, 274, 390, 411, 548, 685, 761, 780, 822, 1370, 1522, 1644, 1781, 2055, 2283, 2740, 3044, 3562, 3805, 4110, 4566, 5343, 7124, 7610, 8220, 8905, 9132, 9893, 10686, 11415, 15220, 17810, 19786, 21372, 22830, 26715, 29679, 35620, 39572, 45660, 49465, 53430, 59358, 98930, 104257, 106860, 118716, 148395, 197860, 208514, 296790, 312771, 417028, 521285, 593580, 625542, 1042570, 1251084, 1355341, 1563855, 2085140, 2710682, 3127710, 4066023, 5421364, 6255420, 6776705, 8132046, 13553410, 16264092, 20330115, 27106820, 40660230, 81320460]

約数ペア:

[(1, 81320460), (2, 40660230), (3, 27106820), (4, 20330115), (5, 16264092), (6, 13553410), (10, 8132046), (12, 6776705), (13, 6255420), (15, 5421364), (20, 4066023), (26, 3127710), (30, 2710682), (39, 2085140), (52, 1563855), (60, 1355341), (65, 1251084), (78, 1042570), (130, 625542), (137, 593580), (156, 521285), (195, 417028), (260, 312771), (274, 296790), (390, 208514), (411, 197860), (548, 148395), (685, 118716), (761, 106860), (780, 104257), (822, 98930), (1370, 59358), (1522, 53430), (1644, 49465), (1781, 45660), (2055, 39572), (2283, 35620), (2740, 29679), (3044, 26715), (3562, 22830), (3805, 21372), (4110, 19786), (4566, 17810), (5343, 15220), (7124, 11415), (7610, 10686), (8220, 9893), (8905, 9132)]