67516780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{30971}}^1$

素因数の和:31089

約数の個数: 24

約数和(自身を含む): 143090640

約数和(自身を除く): 75573860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 30971, 61942, 123884, 154855, 309710, 619420, 3375839, 6751678, 13503356, 16879195, 33758390, 67516780]

約数ペア:

[(1, 67516780), (2, 33758390), (4, 16879195), (5, 13503356), (10, 6751678), (20, 3375839), (109, 619420), (218, 309710), (436, 154855), (545, 123884), (1090, 61942), (2180, 30971)]