71039120

素因数分解:

$2^4\times 5^1\times {\mathrm{887989}}^1$

素因数の和:888002

約数の個数: 20

約数和(自身を含む): 165166140

約数和(自身を除く): 94127020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 887989, 1775978, 3551956, 4439945, 7103912, 8879890, 14207824, 17759780, 35519560, 71039120]

約数ペア:

[(1, 71039120), (2, 35519560), (4, 17759780), (5, 14207824), (8, 8879890), (10, 7103912), (16, 4439945), (20, 3551956), (40, 1775978), (80, 887989)]