28238280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33617}}^1$

素因数の和:33638

約数の個数: 64

約数和(自身を含む): 96819840

約数和(自身を除く): 68581560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33617, 67234, 100851, 134468, 168085, 201702, 235319, 268936, 336170, 403404, 470638, 504255, 672340, 705957, 806808, 941276, 1008510, 1176595, 1344680, 1411914, 1882552, 2017020, 2353190, 2823828, 3529785, 4034040, 4706380, 5647656, 7059570, 9412760, 14119140, 28238280]

約数ペア:

[(1, 28238280), (2, 14119140), (3, 9412760), (4, 7059570), (5, 5647656), (6, 4706380), (7, 4034040), (8, 3529785), (10, 2823828), (12, 2353190), (14, 2017020), (15, 1882552), (20, 1411914), (21, 1344680), (24, 1176595), (28, 1008510), (30, 941276), (35, 806808), (40, 705957), (42, 672340), (56, 504255), (60, 470638), (70, 403404), (84, 336170), (105, 268936), (120, 235319), (140, 201702), (168, 168085), (210, 134468), (280, 100851), (420, 67234), (840, 33617)]