21932120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 60739200

約数和(自身を除く): 38807080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 37, 40, 56, 58, 70, 73, 74, 116, 140, 145, 146, 148, 185, 203, 232, 259, 280, 290, 292, 296, 365, 370, 406, 511, 518, 580, 584, 730, 740, 812, 1015, 1022, 1036, 1073, 1160, 1295, 1460, 1480, 1624, 2030, 2044, 2072, 2117, 2146, 2555, 2590, 2701, 2920, 4060, 4088, 4234, 4292, 5110, 5180, 5365, 5402, 7511, 8120, 8468, 8584, 10220, 10360, 10585, 10730, 10804, 13505, 14819, 15022, 16936, 18907, 20440, 21170, 21460, 21608, 27010, 29638, 30044, 37555, 37814, 42340, 42920, 54020, 59276, 60088, 74095, 75110, 75628, 78329, 84680, 94535, 108040, 118552, 148190, 150220, 151256, 156658, 189070, 296380, 300440, 313316, 378140, 391645, 548303, 592760, 626632, 756280, 783290, 1096606, 1566580, 2193212, 2741515, 3133160, 4386424, 5483030, 10966060, 21932120]

約数ペア:

[(1, 21932120), (2, 10966060), (4, 5483030), (5, 4386424), (7, 3133160), (8, 2741515), (10, 2193212), (14, 1566580), (20, 1096606), (28, 783290), (29, 756280), (35, 626632), (37, 592760), (40, 548303), (56, 391645), (58, 378140), (70, 313316), (73, 300440), (74, 296380), (116, 189070), (140, 156658), (145, 151256), (146, 150220), (148, 148190), (185, 118552), (203, 108040), (232, 94535), (259, 84680), (280, 78329), (290, 75628), (292, 75110), (296, 74095), (365, 60088), (370, 59276), (406, 54020), (511, 42920), (518, 42340), (580, 37814), (584, 37555), (730, 30044), (740, 29638), (812, 27010), (1015, 21608), (1022, 21460), (1036, 21170), (1073, 20440), (1160, 18907), (1295, 16936), (1460, 15022), (1480, 14819), (1624, 13505), (2030, 10804), (2044, 10730), (2072, 10585), (2117, 10360), (2146, 10220), (2555, 8584), (2590, 8468), (2701, 8120), (2920, 7511), (4060, 5402), (4088, 5365), (4234, 5180), (4292, 5110)]