20647200

素因数分解:

$2^5\times 3^1\times 5^2\times 7^1\times {\mathrm{1229}}^1$

素因数の和:1259

約数の個数: 144

約数和(自身を含む): 76870080

約数和(自身を除く): 56222880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 70, 75, 80, 84, 96, 100, 105, 112, 120, 140, 150, 160, 168, 175, 200, 210, 224, 240, 280, 300, 336, 350, 400, 420, 480, 525, 560, 600, 672, 700, 800, 840, 1050, 1120, 1200, 1229, 1400, 1680, 2100, 2400, 2458, 2800, 3360, 3687, 4200, 4916, 5600, 6145, 7374, 8400, 8603, 9832, 12290, 14748, 16800, 17206, 18435, 19664, 24580, 25809, 29496, 30725, 34412, 36870, 39328, 43015, 49160, 51618, 58992, 61450, 68824, 73740, 86030, 92175, 98320, 103236, 117984, 122900, 129045, 137648, 147480, 172060, 184350, 196640, 206472, 215075, 245800, 258090, 275296, 294960, 344120, 368700, 412944, 430150, 491600, 516180, 589920, 645225, 688240, 737400, 825888, 860300, 983200, 1032360, 1290450, 1376480, 1474800, 1720600, 2064720, 2580900, 2949600, 3441200, 4129440, 5161800, 6882400, 10323600, 20647200]

約数ペア:

[(1, 20647200), (2, 10323600), (3, 6882400), (4, 5161800), (5, 4129440), (6, 3441200), (7, 2949600), (8, 2580900), (10, 2064720), (12, 1720600), (14, 1474800), (15, 1376480), (16, 1290450), (20, 1032360), (21, 983200), (24, 860300), (25, 825888), (28, 737400), (30, 688240), (32, 645225), (35, 589920), (40, 516180), (42, 491600), (48, 430150), (50, 412944), (56, 368700), (60, 344120), (70, 294960), (75, 275296), (80, 258090), (84, 245800), (96, 215075), (100, 206472), (105, 196640), (112, 184350), (120, 172060), (140, 147480), (150, 137648), (160, 129045), (168, 122900), (175, 117984), (200, 103236), (210, 98320), (224, 92175), (240, 86030), (280, 73740), (300, 68824), (336, 61450), (350, 58992), (400, 51618), (420, 49160), (480, 43015), (525, 39328), (560, 36870), (600, 34412), (672, 30725), (700, 29496), (800, 25809), (840, 24580), (1050, 19664), (1120, 18435), (1200, 17206), (1229, 16800), (1400, 14748), (1680, 12290), (2100, 9832), (2400, 8603), (2458, 8400), (2800, 7374), (3360, 6145), (3687, 5600), (4200, 4916)]