204037100

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{18719}}^1$

素因数の和:18842

約数の個数: 36

約数和(自身を含む): 446846400

約数和(自身を除く): 242809300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 2180, 2725, 5450, 10900, 18719, 37438, 74876, 93595, 187190, 374380, 467975, 935950, 1871900, 2040371, 4080742, 8161484, 10201855, 20403710, 40807420, 51009275, 102018550, 204037100]

約数ペア:

[(1, 204037100), (2, 102018550), (4, 51009275), (5, 40807420), (10, 20403710), (20, 10201855), (25, 8161484), (50, 4080742), (100, 2040371), (109, 1871900), (218, 935950), (436, 467975), (545, 374380), (1090, 187190), (2180, 93595), (2725, 74876), (5450, 37438), (10900, 18719)]