20712720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12329}}^1$

素因数の和:12352

約数の個数: 80

約数和(自身を含む): 73388160

約数和(自身を除く): 52675440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12329, 24658, 36987, 49316, 61645, 73974, 86303, 98632, 123290, 147948, 172606, 184935, 197264, 246580, 258909, 295896, 345212, 369870, 431515, 493160, 517818, 591792, 690424, 739740, 863030, 986320, 1035636, 1294545, 1380848, 1479480, 1726060, 2071272, 2589090, 2958960, 3452120, 4142544, 5178180, 6904240, 10356360, 20712720]

約数ペア:

[(1, 20712720), (2, 10356360), (3, 6904240), (4, 5178180), (5, 4142544), (6, 3452120), (7, 2958960), (8, 2589090), (10, 2071272), (12, 1726060), (14, 1479480), (15, 1380848), (16, 1294545), (20, 1035636), (21, 986320), (24, 863030), (28, 739740), (30, 690424), (35, 591792), (40, 517818), (42, 493160), (48, 431515), (56, 369870), (60, 345212), (70, 295896), (80, 258909), (84, 246580), (105, 197264), (112, 184935), (120, 172606), (140, 147948), (168, 123290), (210, 98632), (240, 86303), (280, 73974), (336, 61645), (420, 49316), (560, 36987), (840, 24658), (1680, 12329)]