20636880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7817}}^1$

素因数の和:7844

約数の個数: 80

約数和(自身を含む): 69799104

約数和(自身を除く): 49162224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7817, 15634, 23451, 31268, 39085, 46902, 62536, 78170, 85987, 93804, 117255, 125072, 156340, 171974, 187608, 234510, 257961, 312680, 343948, 375216, 429935, 469020, 515922, 625360, 687896, 859870, 938040, 1031844, 1289805, 1375792, 1719740, 1876080, 2063688, 2579610, 3439480, 4127376, 5159220, 6878960, 10318440, 20636880]

約数ペア:

[(1, 20636880), (2, 10318440), (3, 6878960), (4, 5159220), (5, 4127376), (6, 3439480), (8, 2579610), (10, 2063688), (11, 1876080), (12, 1719740), (15, 1375792), (16, 1289805), (20, 1031844), (22, 938040), (24, 859870), (30, 687896), (33, 625360), (40, 515922), (44, 469020), (48, 429935), (55, 375216), (60, 343948), (66, 312680), (80, 257961), (88, 234510), (110, 187608), (120, 171974), (132, 156340), (165, 125072), (176, 117255), (220, 93804), (240, 85987), (264, 78170), (330, 62536), (440, 46902), (528, 39085), (660, 31268), (880, 23451), (1320, 15634), (2640, 7817)]