81936540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{65029}}^1$

素因数の和:65051

約数の個数: 72

約数和(自身を含む): 284051040

約数和(自身を除く): 202114500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 65029, 130058, 195087, 260116, 325145, 390174, 455203, 585261, 650290, 780348, 910406, 975435, 1170522, 1300580, 1365609, 1820812, 1950870, 2276015, 2341044, 2731218, 2926305, 3901740, 4096827, 4552030, 5462436, 5852610, 6828045, 8193654, 9104060, 11705220, 13656090, 16387308, 20484135, 27312180, 40968270, 81936540]

約数ペア:

[(1, 81936540), (2, 40968270), (3, 27312180), (4, 20484135), (5, 16387308), (6, 13656090), (7, 11705220), (9, 9104060), (10, 8193654), (12, 6828045), (14, 5852610), (15, 5462436), (18, 4552030), (20, 4096827), (21, 3901740), (28, 2926305), (30, 2731218), (35, 2341044), (36, 2276015), (42, 1950870), (45, 1820812), (60, 1365609), (63, 1300580), (70, 1170522), (84, 975435), (90, 910406), (105, 780348), (126, 650290), (140, 585261), (180, 455203), (210, 390174), (252, 325145), (315, 260116), (420, 195087), (630, 130058), (1260, 65029)]