20176990

素因数分解:

$2^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:396

約数の個数: 32

約数和(自身を含む): 37208160

約数和(自身を除く): 17031170

約数列:

[1, 2, 5, 10, 107, 109, 173, 214, 218, 346, 535, 545, 865, 1070, 1090, 1730, 11663, 18511, 18857, 23326, 37022, 37714, 58315, 92555, 94285, 116630, 185110, 188570, 2017699, 4035398, 10088495, 20176990]

約数ペア:

[(1, 20176990), (2, 10088495), (5, 4035398), (10, 2017699), (107, 188570), (109, 185110), (173, 116630), (214, 94285), (218, 92555), (346, 58315), (535, 37714), (545, 37022), (865, 23326), (1070, 18857), (1090, 18511), (1730, 11663)]