77254420

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{21341}}^1$

素因数の和:21531

約数の個数: 24

約数和(自身を含む): 163138248

約数和(自身を除く): 85883828

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 3620, 21341, 42682, 85364, 106705, 213410, 426820, 3862721, 7725442, 15450884, 19313605, 38627210, 77254420]

約数ペア:

[(1, 77254420), (2, 38627210), (4, 19313605), (5, 15450884), (10, 7725442), (20, 3862721), (181, 426820), (362, 213410), (724, 106705), (905, 85364), (1810, 42682), (3620, 21341)]