84781880

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{21851}}^1$

素因数の和:21959

約数の個数: 32

約数和(自身を含む): 192734640

約数和(自身を除く): 107952760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 21851, 43702, 87404, 109255, 174808, 218510, 437020, 874040, 2119547, 4239094, 8478188, 10597735, 16956376, 21195470, 42390940, 84781880]

約数ペア:

[(1, 84781880), (2, 42390940), (4, 21195470), (5, 16956376), (8, 10597735), (10, 8478188), (20, 4239094), (40, 2119547), (97, 874040), (194, 437020), (388, 218510), (485, 174808), (776, 109255), (970, 87404), (1940, 43702), (3880, 21851)]