78681920

素因数分解:

$2^6\times 5^1\times {\mathrm{245881}}^1$

素因数の和:245898

約数の個数: 28

約数和(自身を含む): 187362084

約数和(自身を除く): 108680164

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 245881, 491762, 983524, 1229405, 1967048, 2458810, 3934096, 4917620, 7868192, 9835240, 15736384, 19670480, 39340960, 78681920]

約数ペア:

[(1, 78681920), (2, 39340960), (4, 19670480), (5, 15736384), (8, 9835240), (10, 7868192), (16, 4917620), (20, 3934096), (32, 2458810), (40, 1967048), (64, 1229405), (80, 983524), (160, 491762), (320, 245881)]