168239988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1549}}^1$

素因数の和:1997

約数の個数: 72

約数和(自身を含む): 487468800

約数和(自身を除く): 319228812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 431, 862, 1293, 1549, 1724, 2586, 3017, 3098, 3879, 4647, 5172, 6034, 6196, 7758, 9051, 9294, 10843, 12068, 13941, 15516, 18102, 18588, 21686, 27153, 27882, 32529, 36204, 43372, 54306, 55764, 65058, 97587, 108612, 130116, 195174, 390348, 667619, 1335238, 2002857, 2670476, 4005714, 4673333, 6008571, 8011428, 9346666, 12017142, 14019999, 18693332, 24034284, 28039998, 42059997, 56079996, 84119994, 168239988]

約数ペア:

[(1, 168239988), (2, 84119994), (3, 56079996), (4, 42059997), (6, 28039998), (7, 24034284), (9, 18693332), (12, 14019999), (14, 12017142), (18, 9346666), (21, 8011428), (28, 6008571), (36, 4673333), (42, 4005714), (63, 2670476), (84, 2002857), (126, 1335238), (252, 667619), (431, 390348), (862, 195174), (1293, 130116), (1549, 108612), (1724, 97587), (2586, 65058), (3017, 55764), (3098, 54306), (3879, 43372), (4647, 36204), (5172, 32529), (6034, 27882), (6196, 27153), (7758, 21686), (9051, 18588), (9294, 18102), (10843, 15516), (12068, 13941)]