81856980

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{16843}}^1$

素因数の和:16867

約数の個数: 72

約数和(自身を含む): 257511072

約数和(自身を除く): 175654092

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 810, 972, 1215, 1620, 2430, 4860, 16843, 33686, 50529, 67372, 84215, 101058, 151587, 168430, 202116, 252645, 303174, 336860, 454761, 505290, 606348, 757935, 909522, 1010580, 1364283, 1515870, 1819044, 2273805, 2728566, 3031740, 4092849, 4547610, 5457132, 6821415, 8185698, 9095220, 13642830, 16371396, 20464245, 27285660, 40928490, 81856980]

約数ペア:

[(1, 81856980), (2, 40928490), (3, 27285660), (4, 20464245), (5, 16371396), (6, 13642830), (9, 9095220), (10, 8185698), (12, 6821415), (15, 5457132), (18, 4547610), (20, 4092849), (27, 3031740), (30, 2728566), (36, 2273805), (45, 1819044), (54, 1515870), (60, 1364283), (81, 1010580), (90, 909522), (108, 757935), (135, 606348), (162, 505290), (180, 454761), (243, 336860), (270, 303174), (324, 252645), (405, 202116), (486, 168430), (540, 151587), (810, 101058), (972, 84215), (1215, 67372), (1620, 50529), (2430, 33686), (4860, 16843)]