18915040

素因数分解:

$2^5\times 5^1\times {\mathrm{118219}}^1$

素因数の和:118234

約数の個数: 24

約数和(自身を含む): 44687160

約数和(自身を除く): 25772120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 118219, 236438, 472876, 591095, 945752, 1182190, 1891504, 2364380, 3783008, 4728760, 9457520, 18915040]

約数ペア:

[(1, 18915040), (2, 9457520), (4, 4728760), (5, 3783008), (8, 2364380), (10, 1891504), (16, 1182190), (20, 945752), (32, 591095), (40, 472876), (80, 236438), (160, 118219)]