22272020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 48495888

約数和(自身を除く): 26223868

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 157, 164, 173, 205, 314, 346, 410, 628, 692, 785, 820, 865, 1570, 1730, 3140, 3460, 6437, 7093, 12874, 14186, 25748, 27161, 28372, 32185, 35465, 54322, 64370, 70930, 108644, 128740, 135805, 141860, 271610, 543220, 1113601, 2227202, 4454404, 5568005, 11136010, 22272020]

約数ペア:

[(1, 22272020), (2, 11136010), (4, 5568005), (5, 4454404), (10, 2227202), (20, 1113601), (41, 543220), (82, 271610), (157, 141860), (164, 135805), (173, 128740), (205, 108644), (314, 70930), (346, 64370), (410, 54322), (628, 35465), (692, 32185), (785, 28372), (820, 27161), (865, 25748), (1570, 14186), (1730, 12874), (3140, 7093), (3460, 6437)]