27639220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197423}}^1$

素因数の和:197439

約数の個数: 24

約数和(自身を含む): 66334464

約数和(自身を除く): 38695244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197423, 394846, 789692, 987115, 1381961, 1974230, 2763922, 3948460, 5527844, 6909805, 13819610, 27639220]

約数ペア:

[(1, 27639220), (2, 13819610), (4, 6909805), (5, 5527844), (7, 3948460), (10, 2763922), (14, 1974230), (20, 1381961), (28, 987115), (35, 789692), (70, 394846), (140, 197423)]