81594520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{673}}^1$

素因数の和:1124

約数の個数: 64

約数和(自身を含む): 210611520

約数和(自身を除く): 129017000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 433, 673, 866, 1346, 1732, 2165, 2692, 3031, 3365, 3464, 4330, 4711, 5384, 6062, 6730, 8660, 9422, 12124, 13460, 15155, 17320, 18844, 23555, 24248, 26920, 30310, 37688, 47110, 60620, 94220, 121240, 188440, 291409, 582818, 1165636, 1457045, 2039863, 2331272, 2914090, 4079726, 5828180, 8159452, 10199315, 11656360, 16318904, 20398630, 40797260, 81594520]

約数ペア:

[(1, 81594520), (2, 40797260), (4, 20398630), (5, 16318904), (7, 11656360), (8, 10199315), (10, 8159452), (14, 5828180), (20, 4079726), (28, 2914090), (35, 2331272), (40, 2039863), (56, 1457045), (70, 1165636), (140, 582818), (280, 291409), (433, 188440), (673, 121240), (866, 94220), (1346, 60620), (1732, 47110), (2165, 37688), (2692, 30310), (3031, 26920), (3365, 24248), (3464, 23555), (4330, 18844), (4711, 17320), (5384, 15155), (6062, 13460), (6730, 12124), (8660, 9422)]