20145431475

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{4909}}^1$

素因数の和:5022

約数の個数: 144

約数和(自身を含む): 41220903360

約数和(自身を除く): 21075471885

約数列:

[1, 3, 5, 9, 13, 15, 23, 25, 39, 45, 61, 65, 69, 75, 115, 117, 183, 195, 207, 225, 299, 305, 325, 345, 549, 575, 585, 793, 897, 915, 975, 1035, 1403, 1495, 1525, 1725, 2379, 2691, 2745, 2925, 3965, 4209, 4485, 4575, 4909, 5175, 7015, 7137, 7475, 11895, 12627, 13455, 13725, 14727, 18239, 19825, 21045, 22425, 24545, 35075, 35685, 44181, 54717, 59475, 63135, 63817, 67275, 73635, 91195, 105225, 112907, 122725, 164151, 178425, 191451, 220905, 273585, 299449, 315675, 319085, 338721, 368175, 455975, 564535, 574353, 820755, 898347, 957255, 1016163, 1104525, 1367925, 1467791, 1497245, 1595425, 1693605, 2695041, 2822675, 2871765, 3892837, 4103775, 4403373, 4491735, 4786275, 5080815, 6887327, 7338955, 7486225, 8468025, 11678511, 13210119, 13475205, 14358825, 19464185, 20661981, 22016865, 22458675, 25404075, 34436635, 35035533, 36694775, 58392555, 61985943, 66050595, 67376025, 89535251, 97320925, 103309905, 110084325, 172183175, 175177665, 268605753, 291962775, 309929715, 330252975, 447676255, 516549525, 805817259, 875888325, 1343028765, 1549648575, 2238381275, 4029086295, 6715143825, 20145431475]

約数ペア:

[(1, 20145431475), (3, 6715143825), (5, 4029086295), (9, 2238381275), (13, 1549648575), (15, 1343028765), (23, 875888325), (25, 805817259), (39, 516549525), (45, 447676255), (61, 330252975), (65, 309929715), (69, 291962775), (75, 268605753), (115, 175177665), (117, 172183175), (183, 110084325), (195, 103309905), (207, 97320925), (225, 89535251), (299, 67376025), (305, 66050595), (325, 61985943), (345, 58392555), (549, 36694775), (575, 35035533), (585, 34436635), (793, 25404075), (897, 22458675), (915, 22016865), (975, 20661981), (1035, 19464185), (1403, 14358825), (1495, 13475205), (1525, 13210119), (1725, 11678511), (2379, 8468025), (2691, 7486225), (2745, 7338955), (2925, 6887327), (3965, 5080815), (4209, 4786275), (4485, 4491735), (4575, 4403373), (4909, 4103775), (5175, 3892837), (7015, 2871765), (7137, 2822675), (7475, 2695041), (11895, 1693605), (12627, 1595425), (13455, 1497245), (13725, 1467791), (14727, 1367925), (18239, 1104525), (19825, 1016163), (21045, 957255), (22425, 898347), (24545, 820755), (35075, 574353), (35685, 564535), (44181, 455975), (54717, 368175), (59475, 338721), (63135, 319085), (63817, 315675), (67275, 299449), (73635, 273585), (91195, 220905), (105225, 191451), (112907, 178425), (122725, 164151)]