313624280

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{80831}}^1$

素因数の和:80939

約数の個数: 32

約数和(自身を含む): 712938240

約数和(自身を除く): 399313960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 80831, 161662, 323324, 404155, 646648, 808310, 1616620, 3233240, 7840607, 15681214, 31362428, 39203035, 62724856, 78406070, 156812140, 313624280]

約数ペア:

[(1, 313624280), (2, 156812140), (4, 78406070), (5, 62724856), (8, 39203035), (10, 31362428), (20, 15681214), (40, 7840607), (97, 3233240), (194, 1616620), (388, 808310), (485, 646648), (776, 404155), (970, 323324), (1940, 161662), (3880, 80831)]