19903140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110573}}^1$

素因数の和:110588

約数の個数: 36

約数和(自身を含む): 60373404

約数和(自身を除く): 40470264

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110573, 221146, 331719, 442292, 552865, 663438, 995157, 1105730, 1326876, 1658595, 1990314, 2211460, 3317190, 3980628, 4975785, 6634380, 9951570, 19903140]

約数ペア:

[(1, 19903140), (2, 9951570), (3, 6634380), (4, 4975785), (5, 3980628), (6, 3317190), (9, 2211460), (10, 1990314), (12, 1658595), (15, 1326876), (18, 1105730), (20, 995157), (30, 663438), (36, 552865), (45, 442292), (60, 331719), (90, 221146), (180, 110573)]