31278960

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{1609}}^1$

素因数の和:1637

約数の個数: 120

約数和(自身を含む): 109003440

約数和(自身を除く): 77724480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1215, 1296, 1609, 1620, 1944, 2160, 2430, 3218, 3240, 3888, 4827, 4860, 6436, 6480, 8045, 9654, 9720, 12872, 14481, 16090, 19308, 19440, 24135, 25744, 28962, 32180, 38616, 43443, 48270, 57924, 64360, 72405, 77232, 86886, 96540, 115848, 128720, 130329, 144810, 173772, 193080, 217215, 231696, 260658, 289620, 347544, 386160, 390987, 434430, 521316, 579240, 651645, 695088, 781974, 868860, 1042632, 1158480, 1303290, 1563948, 1737720, 1954935, 2085264, 2606580, 3127896, 3475440, 3909870, 5213160, 6255792, 7819740, 10426320, 15639480, 31278960]

約数ペア:

[(1, 31278960), (2, 15639480), (3, 10426320), (4, 7819740), (5, 6255792), (6, 5213160), (8, 3909870), (9, 3475440), (10, 3127896), (12, 2606580), (15, 2085264), (16, 1954935), (18, 1737720), (20, 1563948), (24, 1303290), (27, 1158480), (30, 1042632), (36, 868860), (40, 781974), (45, 695088), (48, 651645), (54, 579240), (60, 521316), (72, 434430), (80, 390987), (81, 386160), (90, 347544), (108, 289620), (120, 260658), (135, 231696), (144, 217215), (162, 193080), (180, 173772), (216, 144810), (240, 130329), (243, 128720), (270, 115848), (324, 96540), (360, 86886), (405, 77232), (432, 72405), (486, 64360), (540, 57924), (648, 48270), (720, 43443), (810, 38616), (972, 32180), (1080, 28962), (1215, 25744), (1296, 24135), (1609, 19440), (1620, 19308), (1944, 16090), (2160, 14481), (2430, 12872), (3218, 9720), (3240, 9654), (3888, 8045), (4827, 6480), (4860, 6436)]