20344516180

素因数分解:

$2^2\times 5^1\times {\mathrm{21881}}^1\times {\mathrm{46489}}^1$

素因数の和:68379

約数の個数: 24

約数和(自身を含む): 42726355560

約数和(自身を除く): 22381839380

約数列:

[1, 2, 4, 5, 10, 20, 21881, 43762, 46489, 87524, 92978, 109405, 185956, 218810, 232445, 437620, 464890, 929780, 1017225809, 2034451618, 4068903236, 5086129045, 10172258090, 20344516180]

約数ペア:

[(1, 20344516180), (2, 10172258090), (4, 5086129045), (5, 4068903236), (10, 2034451618), (20, 1017225809), (21881, 929780), (43762, 464890), (46489, 437620), (87524, 232445), (92978, 218810), (109405, 185956)]