20982960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{193}}^1$

素因数の和:363

約数の個数: 120

約数和(自身を含む): 71301984

約数和(自身を除く): 50319024

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 151, 180, 193, 240, 302, 360, 386, 453, 579, 604, 720, 755, 772, 906, 965, 1158, 1208, 1359, 1510, 1544, 1737, 1812, 1930, 2265, 2316, 2416, 2718, 2895, 3020, 3088, 3474, 3624, 3860, 4530, 4632, 5436, 5790, 6040, 6795, 6948, 7248, 7720, 8685, 9060, 9264, 10872, 11580, 12080, 13590, 13896, 15440, 17370, 18120, 21744, 23160, 27180, 27792, 29143, 34740, 36240, 46320, 54360, 58286, 69480, 87429, 108720, 116572, 138960, 145715, 174858, 233144, 262287, 291430, 349716, 437145, 466288, 524574, 582860, 699432, 874290, 1049148, 1165720, 1311435, 1398864, 1748580, 2098296, 2331440, 2622870, 3497160, 4196592, 5245740, 6994320, 10491480, 20982960]

約数ペア:

[(1, 20982960), (2, 10491480), (3, 6994320), (4, 5245740), (5, 4196592), (6, 3497160), (8, 2622870), (9, 2331440), (10, 2098296), (12, 1748580), (15, 1398864), (16, 1311435), (18, 1165720), (20, 1049148), (24, 874290), (30, 699432), (36, 582860), (40, 524574), (45, 466288), (48, 437145), (60, 349716), (72, 291430), (80, 262287), (90, 233144), (120, 174858), (144, 145715), (151, 138960), (180, 116572), (193, 108720), (240, 87429), (302, 69480), (360, 58286), (386, 54360), (453, 46320), (579, 36240), (604, 34740), (720, 29143), (755, 27792), (772, 27180), (906, 23160), (965, 21744), (1158, 18120), (1208, 17370), (1359, 15440), (1510, 13896), (1544, 13590), (1737, 12080), (1812, 11580), (1930, 10872), (2265, 9264), (2316, 9060), (2416, 8685), (2718, 7720), (2895, 7248), (3020, 6948), (3088, 6795), (3474, 6040), (3624, 5790), (3860, 5436), (4530, 4632)]