16333840

素因数分解:

$2^4\times 5^1\times {\mathrm{204173}}^1$

素因数の和:204186

約数の個数: 20

約数和(自身を含む): 37976364

約数和(自身を除く): 21642524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 204173, 408346, 816692, 1020865, 1633384, 2041730, 3266768, 4083460, 8166920, 16333840]

約数ペア:

[(1, 16333840), (2, 8166920), (4, 4083460), (5, 3266768), (8, 2041730), (10, 1633384), (16, 1020865), (20, 816692), (40, 408346), (80, 204173)]