281982120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{335693}}^1$

素因数の和:335714

約数の個数: 64

約数和(自身を含む): 966798720

約数和(自身を除く): 684816600

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, 335693, 671386, 1007079, 1342772, 1678465, 2014158, 2349851, 2685544, 3356930, 4028316, 4699702, 5035395, 6713860, 7049553, 8056632, 9399404, 10070790, 11749255, 13427720, 14099106, 18798808, 20141580, 23498510, 28198212, 35247765, 40283160, 46997020, 56396424, 70495530, 93994040, 140991060, 281982120]

約数ペア:

[(1, 281982120), (2, 140991060), (3, 93994040), (4, 70495530), (5, 56396424), (6, 46997020), (7, 40283160), (8, 35247765), (10, 28198212), (12, 23498510), (14, 20141580), (15, 18798808), (20, 14099106), (21, 13427720), (24, 11749255), (28, 10070790), (30, 9399404), (35, 8056632), (40, 7049553), (42, 6713860), (56, 5035395), (60, 4699702), (70, 4028316), (84, 3356930), (105, 2685544), (120, 2349851), (140, 2014158), (168, 1678465), (210, 1342772), (280, 1007079), (420, 671386), (840, 335693)]