7878640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1279}}^1$

素因数の和:1310

約数の個数: 80

約数和(自身を含む): 22855680

約数和(自身を除く): 14977040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1279, 1540, 2558, 3080, 5116, 6160, 6395, 8953, 10232, 12790, 14069, 17906, 20464, 25580, 28138, 35812, 44765, 51160, 56276, 70345, 71624, 89530, 98483, 102320, 112552, 140690, 143248, 179060, 196966, 225104, 281380, 358120, 393932, 492415, 562760, 716240, 787864, 984830, 1125520, 1575728, 1969660, 3939320, 7878640]

約数ペア:

[(1, 7878640), (2, 3939320), (4, 1969660), (5, 1575728), (7, 1125520), (8, 984830), (10, 787864), (11, 716240), (14, 562760), (16, 492415), (20, 393932), (22, 358120), (28, 281380), (35, 225104), (40, 196966), (44, 179060), (55, 143248), (56, 140690), (70, 112552), (77, 102320), (80, 98483), (88, 89530), (110, 71624), (112, 70345), (140, 56276), (154, 51160), (176, 44765), (220, 35812), (280, 28138), (308, 25580), (385, 20464), (440, 17906), (560, 14069), (616, 12790), (770, 10232), (880, 8953), (1232, 6395), (1279, 6160), (1540, 5116), (2558, 3080)]