80007720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51287}}^1$

素因数の和:51314

約数の個数: 64

約数和(自身を含む): 258491520

約数和(自身を除く): 178483800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 51287, 102574, 153861, 205148, 256435, 307722, 410296, 512870, 615444, 666731, 769305, 1025740, 1230888, 1333462, 1538610, 2000193, 2051480, 2666924, 3077220, 3333655, 4000386, 5333848, 6154440, 6667310, 8000772, 10000965, 13334620, 16001544, 20001930, 26669240, 40003860, 80007720]

約数ペア:

[(1, 80007720), (2, 40003860), (3, 26669240), (4, 20001930), (5, 16001544), (6, 13334620), (8, 10000965), (10, 8000772), (12, 6667310), (13, 6154440), (15, 5333848), (20, 4000386), (24, 3333655), (26, 3077220), (30, 2666924), (39, 2051480), (40, 2000193), (52, 1538610), (60, 1333462), (65, 1230888), (78, 1025740), (104, 769305), (120, 666731), (130, 615444), (156, 512870), (195, 410296), (260, 307722), (312, 256435), (390, 205148), (520, 153861), (780, 102574), (1560, 51287)]