140166940

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{72251}}^1$

素因数の和:72357

約数の個数: 24

約数和(自身を含む): 297389232

約数和(自身を除く): 157222292

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 72251, 144502, 289004, 361255, 722510, 1445020, 7008347, 14016694, 28033388, 35041735, 70083470, 140166940]

約数ペア:

[(1, 140166940), (2, 70083470), (4, 35041735), (5, 28033388), (10, 14016694), (20, 7008347), (97, 1445020), (194, 722510), (388, 361255), (485, 289004), (970, 144502), (1940, 72251)]