20802120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7537}}^1$

素因数の和:7574

約数の個数: 64

約数和(自身を含む): 65128320

約数和(自身を除く): 44326200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7537, 15074, 22611, 30148, 37685, 45222, 60296, 75370, 90444, 113055, 150740, 173351, 180888, 226110, 301480, 346702, 452220, 520053, 693404, 866755, 904440, 1040106, 1386808, 1733510, 2080212, 2600265, 3467020, 4160424, 5200530, 6934040, 10401060, 20802120]

約数ペア:

[(1, 20802120), (2, 10401060), (3, 6934040), (4, 5200530), (5, 4160424), (6, 3467020), (8, 2600265), (10, 2080212), (12, 1733510), (15, 1386808), (20, 1040106), (23, 904440), (24, 866755), (30, 693404), (40, 520053), (46, 452220), (60, 346702), (69, 301480), (92, 226110), (115, 180888), (120, 173351), (138, 150740), (184, 113055), (230, 90444), (276, 75370), (345, 60296), (460, 45222), (552, 37685), (690, 30148), (920, 22611), (1380, 15074), (2760, 7537)]