19909200520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45248183}}^1$

素因数の和:45248205

約数の個数: 32

約数和(自身を含む): 48868038720

約数和(自身を除く): 28958838200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45248183, 90496366, 180992732, 226240915, 361985464, 452481830, 497730013, 904963660, 995460026, 1809927320, 1990920052, 2488650065, 3981840104, 4977300130, 9954600260, 19909200520]

約数ペア:

[(1, 19909200520), (2, 9954600260), (4, 4977300130), (5, 3981840104), (8, 2488650065), (10, 1990920052), (11, 1809927320), (20, 995460026), (22, 904963660), (40, 497730013), (44, 452481830), (55, 361985464), (88, 226240915), (110, 180992732), (220, 90496366), (440, 45248183)]