64020380

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{18503}}^1$

素因数の和:18685

約数の個数: 24

約数和(自身を含む): 135227232

約数和(自身を除く): 71206852

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 18503, 37006, 74012, 92515, 185030, 370060, 3201019, 6402038, 12804076, 16005095, 32010190, 64020380]

約数ペア:

[(1, 64020380), (2, 32010190), (4, 16005095), (5, 12804076), (10, 6402038), (20, 3201019), (173, 370060), (346, 185030), (692, 92515), (865, 74012), (1730, 37006), (3460, 18503)]