54721980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1987}}^1$

素因数の和:2025

約数の個数: 120

約数和(自身を含む): 181854288

約数和(自身を除く): 127132308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 135, 153, 162, 170, 180, 204, 255, 270, 306, 324, 340, 405, 459, 510, 540, 612, 765, 810, 918, 1020, 1377, 1530, 1620, 1836, 1987, 2295, 2754, 3060, 3974, 4590, 5508, 5961, 6885, 7948, 9180, 9935, 11922, 13770, 17883, 19870, 23844, 27540, 29805, 33779, 35766, 39740, 53649, 59610, 67558, 71532, 89415, 101337, 107298, 119220, 135116, 160947, 168895, 178830, 202674, 214596, 268245, 304011, 321894, 337790, 357660, 405348, 506685, 536490, 608022, 643788, 675580, 804735, 912033, 1013370, 1072980, 1216044, 1520055, 1609470, 1824066, 2026740, 2736099, 3040110, 3218940, 3648132, 4560165, 5472198, 6080220, 9120330, 10944396, 13680495, 18240660, 27360990, 54721980]

約数ペア:

[(1, 54721980), (2, 27360990), (3, 18240660), (4, 13680495), (5, 10944396), (6, 9120330), (9, 6080220), (10, 5472198), (12, 4560165), (15, 3648132), (17, 3218940), (18, 3040110), (20, 2736099), (27, 2026740), (30, 1824066), (34, 1609470), (36, 1520055), (45, 1216044), (51, 1072980), (54, 1013370), (60, 912033), (68, 804735), (81, 675580), (85, 643788), (90, 608022), (102, 536490), (108, 506685), (135, 405348), (153, 357660), (162, 337790), (170, 321894), (180, 304011), (204, 268245), (255, 214596), (270, 202674), (306, 178830), (324, 168895), (340, 160947), (405, 135116), (459, 119220), (510, 107298), (540, 101337), (612, 89415), (765, 71532), (810, 67558), (918, 59610), (1020, 53649), (1377, 39740), (1530, 35766), (1620, 33779), (1836, 29805), (1987, 27540), (2295, 23844), (2754, 19870), (3060, 17883), (3974, 13770), (4590, 11922), (5508, 9935), (5961, 9180), (6885, 7948)]