20717200

素因数分解:

$2^4\times 5^2\times 7^3\times {\mathrm{151}}^1$

素因数の和:190

約数の個数: 120

約数和(自身を含む): 58428800

約数和(自身を除く): 37711600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 151, 175, 196, 200, 245, 280, 302, 343, 350, 392, 400, 490, 560, 604, 686, 700, 755, 784, 980, 1057, 1208, 1225, 1372, 1400, 1510, 1715, 1960, 2114, 2416, 2450, 2744, 2800, 3020, 3430, 3775, 3920, 4228, 4900, 5285, 5488, 6040, 6860, 7399, 7550, 8456, 8575, 9800, 10570, 12080, 13720, 14798, 15100, 16912, 17150, 19600, 21140, 26425, 27440, 29596, 30200, 34300, 36995, 42280, 51793, 52850, 59192, 60400, 68600, 73990, 84560, 103586, 105700, 118384, 137200, 147980, 184975, 207172, 211400, 258965, 295960, 369950, 414344, 422800, 517930, 591920, 739900, 828688, 1035860, 1294825, 1479800, 2071720, 2589650, 2959600, 4143440, 5179300, 10358600, 20717200]

約数ペア:

[(1, 20717200), (2, 10358600), (4, 5179300), (5, 4143440), (7, 2959600), (8, 2589650), (10, 2071720), (14, 1479800), (16, 1294825), (20, 1035860), (25, 828688), (28, 739900), (35, 591920), (40, 517930), (49, 422800), (50, 414344), (56, 369950), (70, 295960), (80, 258965), (98, 211400), (100, 207172), (112, 184975), (140, 147980), (151, 137200), (175, 118384), (196, 105700), (200, 103586), (245, 84560), (280, 73990), (302, 68600), (343, 60400), (350, 59192), (392, 52850), (400, 51793), (490, 42280), (560, 36995), (604, 34300), (686, 30200), (700, 29596), (755, 27440), (784, 26425), (980, 21140), (1057, 19600), (1208, 17150), (1225, 16912), (1372, 15100), (1400, 14798), (1510, 13720), (1715, 12080), (1960, 10570), (2114, 9800), (2416, 8575), (2450, 8456), (2744, 7550), (2800, 7399), (3020, 6860), (3430, 6040), (3775, 5488), (3920, 5285), (4228, 4900)]