22200440

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2789}}^1$

素因数の和:2999

約数の個数: 32

約数和(自身を含む): 50220000

約数和(自身を除く): 28019560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2789, 3980, 5578, 7960, 11156, 13945, 22312, 27890, 55780, 111560, 555011, 1110022, 2220044, 2775055, 4440088, 5550110, 11100220, 22200440]

約数ペア:

[(1, 22200440), (2, 11100220), (4, 5550110), (5, 4440088), (8, 2775055), (10, 2220044), (20, 1110022), (40, 555011), (199, 111560), (398, 55780), (796, 27890), (995, 22312), (1592, 13945), (1990, 11156), (2789, 7960), (3980, 5578)]