198891560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{710327}}^1$

素因数の和:710345

約数の個数: 32

約数和(自身を含む): 511436160

約数和(自身を除く): 312544600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 710327, 1420654, 2841308, 3551635, 4972289, 5682616, 7103270, 9944578, 14206540, 19889156, 24861445, 28413080, 39778312, 49722890, 99445780, 198891560]

約数ペア:

[(1, 198891560), (2, 99445780), (4, 49722890), (5, 39778312), (7, 28413080), (8, 24861445), (10, 19889156), (14, 14206540), (20, 9944578), (28, 7103270), (35, 5682616), (40, 4972289), (56, 3551635), (70, 2841308), (140, 1420654), (280, 710327)]