20123964

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:509

約数の個数: 120

約数和(自身を含む): 63423360

約数和(自身を除く): 43299396

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 54, 57, 63, 76, 81, 84, 108, 114, 126, 133, 162, 171, 189, 228, 252, 266, 324, 342, 378, 399, 467, 513, 532, 567, 684, 756, 798, 934, 1026, 1134, 1197, 1401, 1539, 1596, 1868, 2052, 2268, 2394, 2802, 3078, 3269, 3591, 4203, 4788, 5604, 6156, 6538, 7182, 8406, 8873, 9807, 10773, 12609, 13076, 14364, 16812, 17746, 19614, 21546, 25218, 26619, 29421, 35492, 37827, 39228, 43092, 50436, 53238, 58842, 62111, 75654, 79857, 88263, 106476, 117684, 124222, 151308, 159714, 176526, 186333, 239571, 248444, 264789, 319428, 353052, 372666, 479142, 529578, 558999, 718713, 745332, 958284, 1059156, 1117998, 1437426, 1676997, 2235996, 2874852, 3353994, 5030991, 6707988, 10061982, 20123964]

約数ペア:

[(1, 20123964), (2, 10061982), (3, 6707988), (4, 5030991), (6, 3353994), (7, 2874852), (9, 2235996), (12, 1676997), (14, 1437426), (18, 1117998), (19, 1059156), (21, 958284), (27, 745332), (28, 718713), (36, 558999), (38, 529578), (42, 479142), (54, 372666), (57, 353052), (63, 319428), (76, 264789), (81, 248444), (84, 239571), (108, 186333), (114, 176526), (126, 159714), (133, 151308), (162, 124222), (171, 117684), (189, 106476), (228, 88263), (252, 79857), (266, 75654), (324, 62111), (342, 58842), (378, 53238), (399, 50436), (467, 43092), (513, 39228), (532, 37827), (567, 35492), (684, 29421), (756, 26619), (798, 25218), (934, 21546), (1026, 19614), (1134, 17746), (1197, 16812), (1401, 14364), (1539, 13076), (1596, 12609), (1868, 10773), (2052, 9807), (2268, 8873), (2394, 8406), (2802, 7182), (3078, 6538), (3269, 6156), (3591, 5604), (4203, 4788)]