85816780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{612977}}^1$

素因数の和:612993

約数の個数: 24

約数和(自身を含む): 205960608

約数和(自身を除く): 120143828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 612977, 1225954, 2451908, 3064885, 4290839, 6129770, 8581678, 12259540, 17163356, 21454195, 42908390, 85816780]

約数ペア:

[(1, 85816780), (2, 42908390), (4, 21454195), (5, 17163356), (7, 12259540), (10, 8581678), (14, 6129770), (20, 4290839), (28, 3064885), (35, 2451908), (70, 1225954), (140, 612977)]