20187440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:139

約数の個数: 160

約数和(自身を含む): 59996160

約数和(自身を除く): 39808720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 47, 52, 56, 59, 65, 70, 80, 91, 94, 104, 112, 118, 130, 140, 182, 188, 208, 235, 236, 260, 280, 295, 329, 364, 376, 413, 455, 470, 472, 520, 560, 590, 611, 658, 728, 752, 767, 826, 910, 940, 944, 1040, 1180, 1222, 1316, 1456, 1534, 1645, 1652, 1820, 1880, 2065, 2360, 2444, 2632, 2773, 3055, 3068, 3290, 3304, 3640, 3760, 3835, 4130, 4277, 4720, 4888, 5264, 5369, 5546, 6110, 6136, 6580, 6608, 7280, 7670, 8260, 8554, 9776, 10738, 11092, 12220, 12272, 13160, 13865, 15340, 16520, 17108, 19411, 21385, 21476, 22184, 24440, 26320, 26845, 27730, 30680, 33040, 34216, 36049, 38822, 42770, 42952, 44368, 48880, 53690, 55460, 61360, 68432, 72098, 77644, 85540, 85904, 97055, 107380, 110920, 144196, 155288, 171080, 180245, 194110, 214760, 221840, 252343, 288392, 310576, 342160, 360490, 388220, 429520, 504686, 576784, 720980, 776440, 1009372, 1261715, 1441960, 1552880, 2018744, 2523430, 2883920, 4037488, 5046860, 10093720, 20187440]

約数ペア:

[(1, 20187440), (2, 10093720), (4, 5046860), (5, 4037488), (7, 2883920), (8, 2523430), (10, 2018744), (13, 1552880), (14, 1441960), (16, 1261715), (20, 1009372), (26, 776440), (28, 720980), (35, 576784), (40, 504686), (47, 429520), (52, 388220), (56, 360490), (59, 342160), (65, 310576), (70, 288392), (80, 252343), (91, 221840), (94, 214760), (104, 194110), (112, 180245), (118, 171080), (130, 155288), (140, 144196), (182, 110920), (188, 107380), (208, 97055), (235, 85904), (236, 85540), (260, 77644), (280, 72098), (295, 68432), (329, 61360), (364, 55460), (376, 53690), (413, 48880), (455, 44368), (470, 42952), (472, 42770), (520, 38822), (560, 36049), (590, 34216), (611, 33040), (658, 30680), (728, 27730), (752, 26845), (767, 26320), (826, 24440), (910, 22184), (940, 21476), (944, 21385), (1040, 19411), (1180, 17108), (1222, 16520), (1316, 15340), (1456, 13865), (1534, 13160), (1645, 12272), (1652, 12220), (1820, 11092), (1880, 10738), (2065, 9776), (2360, 8554), (2444, 8260), (2632, 7670), (2773, 7280), (3055, 6608), (3068, 6580), (3290, 6136), (3304, 6110), (3640, 5546), (3760, 5369), (3835, 5264), (4130, 4888), (4277, 4720)]