67618280

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{8581}}^1$

素因数の和:8789

約数の個数: 32

約数和(自身を含む): 152931240

約数和(自身を除く): 85312960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 8581, 17162, 34324, 42905, 68648, 85810, 171620, 343240, 1690457, 3380914, 6761828, 8452285, 13523656, 16904570, 33809140, 67618280]

約数ペア:

[(1, 67618280), (2, 33809140), (4, 16904570), (5, 13523656), (8, 8452285), (10, 6761828), (20, 3380914), (40, 1690457), (197, 343240), (394, 171620), (788, 85810), (985, 68648), (1576, 42905), (1970, 34324), (3940, 17162), (7880, 8581)]