28371840

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{2111}}^1$

素因数の和:2140

約数の個数: 128

約数和(自身を含む): 103403520

約数和(自身を除く): 75031680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2111, 2240, 2688, 3360, 4222, 4480, 6333, 6720, 8444, 10555, 12666, 13440, 14777, 16888, 21110, 25332, 29554, 31665, 33776, 42220, 44331, 50664, 59108, 63330, 67552, 73885, 84440, 88662, 101328, 118216, 126660, 135104, 147770, 168880, 177324, 202656, 221655, 236432, 253320, 270208, 295540, 337760, 354648, 405312, 443310, 472864, 506640, 591080, 675520, 709296, 810624, 886620, 945728, 1013280, 1182160, 1351040, 1418592, 1773240, 1891456, 2026560, 2364320, 2837184, 3546480, 4053120, 4728640, 5674368, 7092960, 9457280, 14185920, 28371840]

約数ペア:

[(1, 28371840), (2, 14185920), (3, 9457280), (4, 7092960), (5, 5674368), (6, 4728640), (7, 4053120), (8, 3546480), (10, 2837184), (12, 2364320), (14, 2026560), (15, 1891456), (16, 1773240), (20, 1418592), (21, 1351040), (24, 1182160), (28, 1013280), (30, 945728), (32, 886620), (35, 810624), (40, 709296), (42, 675520), (48, 591080), (56, 506640), (60, 472864), (64, 443310), (70, 405312), (80, 354648), (84, 337760), (96, 295540), (105, 270208), (112, 253320), (120, 236432), (128, 221655), (140, 202656), (160, 177324), (168, 168880), (192, 147770), (210, 135104), (224, 126660), (240, 118216), (280, 101328), (320, 88662), (336, 84440), (384, 73885), (420, 67552), (448, 63330), (480, 59108), (560, 50664), (640, 44331), (672, 42220), (840, 33776), (896, 31665), (960, 29554), (1120, 25332), (1344, 21110), (1680, 16888), (1920, 14777), (2111, 13440), (2240, 12666), (2688, 10555), (3360, 8444), (4222, 6720), (4480, 6333)]