121640840

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{4657}}^1$

素因数の和:5321

約数の個数: 32

約数和(自身を含む): 274169880

約数和(自身を除く): 152529040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 3265, 4657, 5224, 6530, 9314, 13060, 18628, 23285, 26120, 37256, 46570, 93140, 186280, 3041021, 6082042, 12164084, 15205105, 24328168, 30410210, 60820420, 121640840]

約数ペア:

[(1, 121640840), (2, 60820420), (4, 30410210), (5, 24328168), (8, 15205105), (10, 12164084), (20, 6082042), (40, 3041021), (653, 186280), (1306, 93140), (2612, 46570), (3265, 37256), (4657, 26120), (5224, 23285), (6530, 18628), (9314, 13060)]