68710980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:805

約数の個数: 96

約数和(自身を含む): 209026944

約数和(自身を除く): 140315964

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, 643, 685, 780, 822, 1286, 1370, 1644, 1781, 1929, 2055, 2572, 2740, 3215, 3562, 3858, 4110, 5343, 6430, 7124, 7716, 8220, 8359, 8905, 9645, 10686, 12860, 16718, 17810, 19290, 21372, 25077, 26715, 33436, 35620, 38580, 41795, 50154, 53430, 83590, 88091, 100308, 106860, 125385, 167180, 176182, 250770, 264273, 352364, 440455, 501540, 528546, 880910, 1057092, 1145183, 1321365, 1761820, 2290366, 2642730, 3435549, 4580732, 5285460, 5725915, 6871098, 11451830, 13742196, 17177745, 22903660, 34355490, 68710980]

約数ペア:

[(1, 68710980), (2, 34355490), (3, 22903660), (4, 17177745), (5, 13742196), (6, 11451830), (10, 6871098), (12, 5725915), (13, 5285460), (15, 4580732), (20, 3435549), (26, 2642730), (30, 2290366), (39, 1761820), (52, 1321365), (60, 1145183), (65, 1057092), (78, 880910), (130, 528546), (137, 501540), (156, 440455), (195, 352364), (260, 264273), (274, 250770), (390, 176182), (411, 167180), (548, 125385), (643, 106860), (685, 100308), (780, 88091), (822, 83590), (1286, 53430), (1370, 50154), (1644, 41795), (1781, 38580), (1929, 35620), (2055, 33436), (2572, 26715), (2740, 25077), (3215, 21372), (3562, 19290), (3858, 17810), (4110, 16718), (5343, 12860), (6430, 10686), (7124, 9645), (7716, 8905), (8220, 8359)]