20459845

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 29399040

約数和(自身を除く): 8939195

約数列:

[1, 5, 7, 31, 35, 109, 155, 173, 217, 545, 763, 865, 1085, 1211, 3379, 3815, 5363, 6055, 16895, 18857, 23653, 26815, 37541, 94285, 118265, 131999, 187705, 584567, 659995, 2922835, 4091969, 20459845]

約数ペア:

[(1, 20459845), (5, 4091969), (7, 2922835), (31, 659995), (35, 584567), (109, 187705), (155, 131999), (173, 118265), (217, 94285), (545, 37541), (763, 26815), (865, 23653), (1085, 18857), (1211, 16895), (3379, 6055), (3815, 5363)]