212514680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1$

素因数の和:409

約数の個数: 128

約数和(自身を含む): 570948480

約数和(自身を除く): 358433800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 73, 74, 140, 146, 148, 185, 259, 280, 281, 292, 296, 365, 370, 511, 518, 562, 584, 730, 740, 1022, 1036, 1124, 1295, 1405, 1460, 1480, 1967, 2044, 2072, 2248, 2555, 2590, 2701, 2810, 2920, 3934, 4088, 5110, 5180, 5402, 5620, 7868, 9835, 10220, 10360, 10397, 10804, 11240, 13505, 15736, 18907, 19670, 20440, 20513, 20794, 21608, 27010, 37814, 39340, 41026, 41588, 51985, 54020, 72779, 75628, 78680, 82052, 83176, 94535, 102565, 103970, 108040, 143591, 145558, 151256, 164104, 189070, 205130, 207940, 287182, 291116, 363895, 378140, 410260, 415880, 574364, 582232, 717955, 727790, 756280, 758981, 820520, 1148728, 1435910, 1455580, 1517962, 2871820, 2911160, 3035924, 3794905, 5312867, 5743640, 6071848, 7589810, 10625734, 15179620, 21251468, 26564335, 30359240, 42502936, 53128670, 106257340, 212514680]

約数ペア:

[(1, 212514680), (2, 106257340), (4, 53128670), (5, 42502936), (7, 30359240), (8, 26564335), (10, 21251468), (14, 15179620), (20, 10625734), (28, 7589810), (35, 6071848), (37, 5743640), (40, 5312867), (56, 3794905), (70, 3035924), (73, 2911160), (74, 2871820), (140, 1517962), (146, 1455580), (148, 1435910), (185, 1148728), (259, 820520), (280, 758981), (281, 756280), (292, 727790), (296, 717955), (365, 582232), (370, 574364), (511, 415880), (518, 410260), (562, 378140), (584, 363895), (730, 291116), (740, 287182), (1022, 207940), (1036, 205130), (1124, 189070), (1295, 164104), (1405, 151256), (1460, 145558), (1480, 143591), (1967, 108040), (2044, 103970), (2072, 102565), (2248, 94535), (2555, 83176), (2590, 82052), (2701, 78680), (2810, 75628), (2920, 72779), (3934, 54020), (4088, 51985), (5110, 41588), (5180, 41026), (5402, 39340), (5620, 37814), (7868, 27010), (9835, 21608), (10220, 20794), (10360, 20513), (10397, 20440), (10804, 19670), (11240, 18907), (13505, 15736)]