20174080

素因数分解:

$2^8\times 5^1\times {\mathrm{15761}}^1$

素因数の和:15782

約数の個数: 36

約数和(自身を含む): 48326292

約数和(自身を除く): 28152212

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15761, 31522, 63044, 78805, 126088, 157610, 252176, 315220, 504352, 630440, 1008704, 1260880, 2017408, 2521760, 4034816, 5043520, 10087040, 20174080]

約数ペア:

[(1, 20174080), (2, 10087040), (4, 5043520), (5, 4034816), (8, 2521760), (10, 2017408), (16, 1260880), (20, 1008704), (32, 630440), (40, 504352), (64, 315220), (80, 252176), (128, 157610), (160, 126088), (256, 78805), (320, 63044), (640, 31522), (1280, 15761)]