20606580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{479}}^1$

素因数の和:733

約数の個数: 72

約数和(自身を含む): 62899200

約数和(自身を除く): 42292620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 239, 478, 479, 717, 956, 958, 1195, 1434, 1437, 1916, 2151, 2390, 2395, 2868, 2874, 3585, 4302, 4311, 4780, 4790, 5748, 7170, 7185, 8604, 8622, 9580, 10755, 14340, 14370, 17244, 21510, 21555, 28740, 43020, 43110, 86220, 114481, 228962, 343443, 457924, 572405, 686886, 1030329, 1144810, 1373772, 1717215, 2060658, 2289620, 3434430, 4121316, 5151645, 6868860, 10303290, 20606580]

約数ペア:

[(1, 20606580), (2, 10303290), (3, 6868860), (4, 5151645), (5, 4121316), (6, 3434430), (9, 2289620), (10, 2060658), (12, 1717215), (15, 1373772), (18, 1144810), (20, 1030329), (30, 686886), (36, 572405), (45, 457924), (60, 343443), (90, 228962), (180, 114481), (239, 86220), (478, 43110), (479, 43020), (717, 28740), (956, 21555), (958, 21510), (1195, 17244), (1434, 14370), (1437, 14340), (1916, 10755), (2151, 9580), (2390, 8622), (2395, 8604), (2868, 7185), (2874, 7170), (3585, 5748), (4302, 4790), (4311, 4780)]