20181131775

素因数分解:

$3^5\times 5^2\times 7^1\times {\mathrm{474571}}^1$

素因数の和:474603

約数の個数: 72

約数和(自身を含む): 42840563584

約数和(自身を除く): 22659431809

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 81, 105, 135, 175, 189, 225, 243, 315, 405, 525, 567, 675, 945, 1215, 1575, 1701, 2025, 2835, 4725, 6075, 8505, 14175, 42525, 474571, 1423713, 2372855, 3321997, 4271139, 7118565, 9965991, 11864275, 12813417, 16609985, 21355695, 29897973, 35592825, 38440251, 49829955, 64067085, 83049925, 89693919, 106778475, 115320753, 149489865, 192201255, 249149775, 269081757, 320335425, 448469595, 576603765, 747449325, 807245271, 961006275, 1345408785, 2242347975, 2883018825, 4036226355, 6727043925, 20181131775]

約数ペア:

[(1, 20181131775), (3, 6727043925), (5, 4036226355), (7, 2883018825), (9, 2242347975), (15, 1345408785), (21, 961006275), (25, 807245271), (27, 747449325), (35, 576603765), (45, 448469595), (63, 320335425), (75, 269081757), (81, 249149775), (105, 192201255), (135, 149489865), (175, 115320753), (189, 106778475), (225, 89693919), (243, 83049925), (315, 64067085), (405, 49829955), (525, 38440251), (567, 35592825), (675, 29897973), (945, 21355695), (1215, 16609985), (1575, 12813417), (1701, 11864275), (2025, 9965991), (2835, 7118565), (4725, 4271139), (6075, 3321997), (8505, 2372855), (14175, 1423713), (42525, 474571)]