20628048

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{29}}^2\times {\mathrm{73}}^1$

素因数の和:149

約数の個数: 120

約数和(自身を含む): 63938368

約数和(自身を除く): 43310320

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 29, 42, 48, 56, 58, 73, 84, 87, 112, 116, 146, 168, 174, 203, 219, 232, 292, 336, 348, 406, 438, 464, 511, 584, 609, 696, 812, 841, 876, 1022, 1168, 1218, 1392, 1533, 1624, 1682, 1752, 2044, 2117, 2436, 2523, 3066, 3248, 3364, 3504, 4088, 4234, 4872, 5046, 5887, 6132, 6351, 6728, 8176, 8468, 9744, 10092, 11774, 12264, 12702, 13456, 14819, 16936, 17661, 20184, 23548, 24528, 25404, 29638, 33872, 35322, 40368, 44457, 47096, 50808, 59276, 61393, 70644, 88914, 94192, 101616, 118552, 122786, 141288, 177828, 184179, 237104, 245572, 282576, 355656, 368358, 429751, 491144, 711312, 736716, 859502, 982288, 1289253, 1473432, 1719004, 2578506, 2946864, 3438008, 5157012, 6876016, 10314024, 20628048]

約数ペア:

[(1, 20628048), (2, 10314024), (3, 6876016), (4, 5157012), (6, 3438008), (7, 2946864), (8, 2578506), (12, 1719004), (14, 1473432), (16, 1289253), (21, 982288), (24, 859502), (28, 736716), (29, 711312), (42, 491144), (48, 429751), (56, 368358), (58, 355656), (73, 282576), (84, 245572), (87, 237104), (112, 184179), (116, 177828), (146, 141288), (168, 122786), (174, 118552), (203, 101616), (219, 94192), (232, 88914), (292, 70644), (336, 61393), (348, 59276), (406, 50808), (438, 47096), (464, 44457), (511, 40368), (584, 35322), (609, 33872), (696, 29638), (812, 25404), (841, 24528), (876, 23548), (1022, 20184), (1168, 17661), (1218, 16936), (1392, 14819), (1533, 13456), (1624, 12702), (1682, 12264), (1752, 11774), (2044, 10092), (2117, 9744), (2436, 8468), (2523, 8176), (3066, 6728), (3248, 6351), (3364, 6132), (3504, 5887), (4088, 5046), (4234, 4872)]