81837540

素因数分解:

$2^2\times 3^7\times 5^1\times {\mathrm{1871}}^1$

素因数の和:1901

約数の個数: 96

約数和(自身を含む): 257886720

約数和(自身を除く): 176049180

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, 729, 810, 972, 1215, 1458, 1620, 1871, 2187, 2430, 2916, 3645, 3742, 4374, 4860, 5613, 7290, 7484, 8748, 9355, 10935, 11226, 14580, 16839, 18710, 21870, 22452, 28065, 33678, 37420, 43740, 50517, 56130, 67356, 84195, 101034, 112260, 151551, 168390, 202068, 252585, 303102, 336780, 454653, 505170, 606204, 757755, 909306, 1010340, 1363959, 1515510, 1818612, 2273265, 2727918, 3031020, 4091877, 4546530, 5455836, 6819795, 8183754, 9093060, 13639590, 16367508, 20459385, 27279180, 40918770, 81837540]

約数ペア:

[(1, 81837540), (2, 40918770), (3, 27279180), (4, 20459385), (5, 16367508), (6, 13639590), (9, 9093060), (10, 8183754), (12, 6819795), (15, 5455836), (18, 4546530), (20, 4091877), (27, 3031020), (30, 2727918), (36, 2273265), (45, 1818612), (54, 1515510), (60, 1363959), (81, 1010340), (90, 909306), (108, 757755), (135, 606204), (162, 505170), (180, 454653), (243, 336780), (270, 303102), (324, 252585), (405, 202068), (486, 168390), (540, 151551), (729, 112260), (810, 101034), (972, 84195), (1215, 67356), (1458, 56130), (1620, 50517), (1871, 43740), (2187, 37420), (2430, 33678), (2916, 28065), (3645, 22452), (3742, 21870), (4374, 18710), (4860, 16839), (5613, 14580), (7290, 11226), (7484, 10935), (8748, 9355)]