81009240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51929}}^1$

素因数の和:51956

約数の個数: 64

約数和(自身を含む): 261727200

約数和(自身を除く): 180717960

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, 51929, 103858, 155787, 207716, 259645, 311574, 415432, 519290, 623148, 675077, 778935, 1038580, 1246296, 1350154, 1557870, 2025231, 2077160, 2700308, 3115740, 3375385, 4050462, 5400616, 6231480, 6750770, 8100924, 10126155, 13501540, 16201848, 20252310, 27003080, 40504620, 81009240]

約数ペア:

[(1, 81009240), (2, 40504620), (3, 27003080), (4, 20252310), (5, 16201848), (6, 13501540), (8, 10126155), (10, 8100924), (12, 6750770), (13, 6231480), (15, 5400616), (20, 4050462), (24, 3375385), (26, 3115740), (30, 2700308), (39, 2077160), (40, 2025231), (52, 1557870), (60, 1350154), (65, 1246296), (78, 1038580), (104, 778935), (120, 675077), (130, 623148), (156, 519290), (195, 415432), (260, 311574), (312, 259645), (390, 207716), (520, 155787), (780, 103858), (1560, 51929)]