81268920

素因数分解:

$2^3\times 3^7\times 5^1\times {\mathrm{929}}^1$

素因数の和:961

約数の個数: 128

約数和(自身を含む): 274536000

約数和(自身を除く): 193267080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 729, 810, 929, 972, 1080, 1215, 1458, 1620, 1858, 1944, 2187, 2430, 2787, 2916, 3240, 3645, 3716, 4374, 4645, 4860, 5574, 5832, 7290, 7432, 8361, 8748, 9290, 9720, 10935, 11148, 13935, 14580, 16722, 17496, 18580, 21870, 22296, 25083, 27870, 29160, 33444, 37160, 41805, 43740, 50166, 55740, 66888, 75249, 83610, 87480, 100332, 111480, 125415, 150498, 167220, 200664, 225747, 250830, 300996, 334440, 376245, 451494, 501660, 601992, 677241, 752490, 902988, 1003320, 1128735, 1354482, 1504980, 1805976, 2031723, 2257470, 2708964, 3009960, 3386205, 4063446, 4514940, 5417928, 6772410, 8126892, 9029880, 10158615, 13544820, 16253784, 20317230, 27089640, 40634460, 81268920]

約数ペア:

[(1, 81268920), (2, 40634460), (3, 27089640), (4, 20317230), (5, 16253784), (6, 13544820), (8, 10158615), (9, 9029880), (10, 8126892), (12, 6772410), (15, 5417928), (18, 4514940), (20, 4063446), (24, 3386205), (27, 3009960), (30, 2708964), (36, 2257470), (40, 2031723), (45, 1805976), (54, 1504980), (60, 1354482), (72, 1128735), (81, 1003320), (90, 902988), (108, 752490), (120, 677241), (135, 601992), (162, 501660), (180, 451494), (216, 376245), (243, 334440), (270, 300996), (324, 250830), (360, 225747), (405, 200664), (486, 167220), (540, 150498), (648, 125415), (729, 111480), (810, 100332), (929, 87480), (972, 83610), (1080, 75249), (1215, 66888), (1458, 55740), (1620, 50166), (1858, 43740), (1944, 41805), (2187, 37160), (2430, 33444), (2787, 29160), (2916, 27870), (3240, 25083), (3645, 22296), (3716, 21870), (4374, 18580), (4645, 17496), (4860, 16722), (5574, 14580), (5832, 13935), (7290, 11148), (7432, 10935), (8361, 9720), (8748, 9290)]