68884220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{38699}}^1$

素因数の和:38797

約数の個数: 24

約数和(自身を含む): 146286000

約数和(自身を除く): 77401780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 38699, 77398, 154796, 193495, 386990, 773980, 3444211, 6888422, 13776844, 17221055, 34442110, 68884220]

約数ペア:

[(1, 68884220), (2, 34442110), (4, 17221055), (5, 13776844), (10, 6888422), (20, 3444211), (89, 773980), (178, 386990), (356, 193495), (445, 154796), (890, 77398), (1780, 38699)]