87565780

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{45137}}^1$

素因数の和:45243

約数の個数: 24

約数和(自身を含む): 185788008

約数和(自身を除く): 98222228

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 45137, 90274, 180548, 225685, 451370, 902740, 4378289, 8756578, 17513156, 21891445, 43782890, 87565780]

約数ペア:

[(1, 87565780), (2, 43782890), (4, 21891445), (5, 17513156), (10, 8756578), (20, 4378289), (97, 902740), (194, 451370), (388, 225685), (485, 180548), (970, 90274), (1940, 45137)]