20391432

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:143

約数の個数: 128

約数和(自身を含む): 58786560

約数和(自身を除く): 38395128

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 23, 24, 34, 41, 46, 51, 53, 68, 69, 82, 92, 102, 106, 123, 136, 138, 159, 164, 184, 204, 212, 246, 276, 318, 328, 391, 408, 424, 492, 552, 636, 697, 782, 901, 943, 984, 1173, 1219, 1272, 1394, 1564, 1802, 1886, 2091, 2173, 2346, 2438, 2703, 2788, 2829, 3128, 3604, 3657, 3772, 4182, 4346, 4692, 4876, 5406, 5576, 5658, 6519, 7208, 7314, 7544, 8364, 8692, 9384, 9752, 10812, 11316, 13038, 14628, 16031, 16728, 17384, 20723, 21624, 22632, 26076, 29256, 32062, 36941, 41446, 48093, 49979, 52152, 62169, 64124, 73882, 82892, 96186, 99958, 110823, 124338, 128248, 147764, 149937, 165784, 192372, 199916, 221646, 248676, 295528, 299874, 384744, 399832, 443292, 497352, 599748, 849643, 886584, 1199496, 1699286, 2548929, 3398572, 5097858, 6797144, 10195716, 20391432]

約数ペア:

[(1, 20391432), (2, 10195716), (3, 6797144), (4, 5097858), (6, 3398572), (8, 2548929), (12, 1699286), (17, 1199496), (23, 886584), (24, 849643), (34, 599748), (41, 497352), (46, 443292), (51, 399832), (53, 384744), (68, 299874), (69, 295528), (82, 248676), (92, 221646), (102, 199916), (106, 192372), (123, 165784), (136, 149937), (138, 147764), (159, 128248), (164, 124338), (184, 110823), (204, 99958), (212, 96186), (246, 82892), (276, 73882), (318, 64124), (328, 62169), (391, 52152), (408, 49979), (424, 48093), (492, 41446), (552, 36941), (636, 32062), (697, 29256), (782, 26076), (901, 22632), (943, 21624), (984, 20723), (1173, 17384), (1219, 16728), (1272, 16031), (1394, 14628), (1564, 13038), (1802, 11316), (1886, 10812), (2091, 9752), (2173, 9384), (2346, 8692), (2438, 8364), (2703, 7544), (2788, 7314), (2829, 7208), (3128, 6519), (3604, 5658), (3657, 5576), (3772, 5406), (4182, 4876), (4346, 4692)]