78765080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{115831}}^1$

素因数の和:115859

約数の個数: 32

約数和(自身を含む): 187647840

約数和(自身を除く): 108882760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 115831, 231662, 463324, 579155, 926648, 1158310, 1969127, 2316620, 3938254, 4633240, 7876508, 9845635, 15753016, 19691270, 39382540, 78765080]

約数ペア:

[(1, 78765080), (2, 39382540), (4, 19691270), (5, 15753016), (8, 9845635), (10, 7876508), (17, 4633240), (20, 3938254), (34, 2316620), (40, 1969127), (68, 1158310), (85, 926648), (136, 579155), (170, 463324), (340, 231662), (680, 115831)]