78536780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{560977}}^1$

素因数の和:560993

約数の個数: 24

約数和(自身を含む): 188488608

約数和(自身を除く): 109951828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 560977, 1121954, 2243908, 2804885, 3926839, 5609770, 7853678, 11219540, 15707356, 19634195, 39268390, 78536780]

約数ペア:

[(1, 78536780), (2, 39268390), (4, 19634195), (5, 15707356), (7, 11219540), (10, 7853678), (14, 5609770), (20, 3926839), (28, 2804885), (35, 2243908), (70, 1121954), (140, 560977)]