85805890

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{78721}}^1$

素因数の和:78837

約数の個数: 16

約数和(自身を含む): 155869560

約数和(自身を除く): 70063670

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 78721, 157442, 393605, 787210, 8580589, 17161178, 42902945, 85805890]

約数ペア:

[(1, 85805890), (2, 42902945), (5, 17161178), (10, 8580589), (109, 787210), (218, 393605), (545, 157442), (1090, 78721)]