201878900

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{18521}}^1$

素因数の和:18644

約数の個数: 36

約数和(自身を含む): 442120140

約数和(自身を除く): 240241240

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 2180, 2725, 5450, 10900, 18521, 37042, 74084, 92605, 185210, 370420, 463025, 926050, 1852100, 2018789, 4037578, 8075156, 10093945, 20187890, 40375780, 50469725, 100939450, 201878900]

約数ペア:

[(1, 201878900), (2, 100939450), (4, 50469725), (5, 40375780), (10, 20187890), (20, 10093945), (25, 8075156), (50, 4037578), (100, 2018789), (109, 1852100), (218, 926050), (436, 463025), (545, 370420), (1090, 185210), (2180, 92605), (2725, 74084), (5450, 37042), (10900, 18521)]