84752780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{79}}^2\times {\mathrm{97}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 208137888

約数和(自身を除く): 123385108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 79, 97, 140, 158, 194, 316, 388, 395, 485, 553, 679, 790, 970, 1106, 1358, 1580, 1940, 2212, 2716, 2765, 3395, 5530, 6241, 6790, 7663, 11060, 12482, 13580, 15326, 24964, 30652, 31205, 38315, 43687, 53641, 62410, 76630, 87374, 107282, 124820, 153260, 174748, 214564, 218435, 268205, 436870, 536410, 605377, 873740, 1072820, 1210754, 2421508, 3026885, 4237639, 6053770, 8475278, 12107540, 16950556, 21188195, 42376390, 84752780]

約数ペア:

[(1, 84752780), (2, 42376390), (4, 21188195), (5, 16950556), (7, 12107540), (10, 8475278), (14, 6053770), (20, 4237639), (28, 3026885), (35, 2421508), (70, 1210754), (79, 1072820), (97, 873740), (140, 605377), (158, 536410), (194, 436870), (316, 268205), (388, 218435), (395, 214564), (485, 174748), (553, 153260), (679, 124820), (790, 107282), (970, 87374), (1106, 76630), (1358, 62410), (1580, 53641), (1940, 43687), (2212, 38315), (2716, 31205), (2765, 30652), (3395, 24964), (5530, 15326), (6241, 13580), (6790, 12482), (7663, 11060)]