20784600

素因数分解:

$2^3\times 3^4\times 5^2\times {\mathrm{1283}}^1$

素因数の和:1311

約数の個数: 120

約数和(自身を含む): 72244260

約数和(自身を除く): 51459660

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 40, 45, 50, 54, 60, 72, 75, 81, 90, 100, 108, 120, 135, 150, 162, 180, 200, 216, 225, 270, 300, 324, 360, 405, 450, 540, 600, 648, 675, 810, 900, 1080, 1283, 1350, 1620, 1800, 2025, 2566, 2700, 3240, 3849, 4050, 5132, 5400, 6415, 7698, 8100, 10264, 11547, 12830, 15396, 16200, 19245, 23094, 25660, 30792, 32075, 34641, 38490, 46188, 51320, 57735, 64150, 69282, 76980, 92376, 96225, 103923, 115470, 128300, 138564, 153960, 173205, 192450, 207846, 230940, 256600, 277128, 288675, 346410, 384900, 415692, 461880, 519615, 577350, 692820, 769800, 831384, 866025, 1039230, 1154700, 1385640, 1732050, 2078460, 2309400, 2598075, 3464100, 4156920, 5196150, 6928200, 10392300, 20784600]

約数ペア:

[(1, 20784600), (2, 10392300), (3, 6928200), (4, 5196150), (5, 4156920), (6, 3464100), (8, 2598075), (9, 2309400), (10, 2078460), (12, 1732050), (15, 1385640), (18, 1154700), (20, 1039230), (24, 866025), (25, 831384), (27, 769800), (30, 692820), (36, 577350), (40, 519615), (45, 461880), (50, 415692), (54, 384900), (60, 346410), (72, 288675), (75, 277128), (81, 256600), (90, 230940), (100, 207846), (108, 192450), (120, 173205), (135, 153960), (150, 138564), (162, 128300), (180, 115470), (200, 103923), (216, 96225), (225, 92376), (270, 76980), (300, 69282), (324, 64150), (360, 57735), (405, 51320), (450, 46188), (540, 38490), (600, 34641), (648, 32075), (675, 30792), (810, 25660), (900, 23094), (1080, 19245), (1283, 16200), (1350, 15396), (1620, 12830), (1800, 11547), (2025, 10264), (2566, 8100), (2700, 7698), (3240, 6415), (3849, 5400), (4050, 5132)]