80900040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51859}}^1$

素因数の和:51886

約数の個数: 64

約数和(自身を含む): 261374400

約数和(自身を除く): 180474360

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, 51859, 103718, 155577, 207436, 259295, 311154, 414872, 518590, 622308, 674167, 777885, 1037180, 1244616, 1348334, 1555770, 2022501, 2074360, 2696668, 3111540, 3370835, 4045002, 5393336, 6223080, 6741670, 8090004, 10112505, 13483340, 16180008, 20225010, 26966680, 40450020, 80900040]

約数ペア:

[(1, 80900040), (2, 40450020), (3, 26966680), (4, 20225010), (5, 16180008), (6, 13483340), (8, 10112505), (10, 8090004), (12, 6741670), (13, 6223080), (15, 5393336), (20, 4045002), (24, 3370835), (26, 3111540), (30, 2696668), (39, 2074360), (40, 2022501), (52, 1555770), (60, 1348334), (65, 1244616), (78, 1037180), (104, 777885), (120, 674167), (130, 622308), (156, 518590), (195, 414872), (260, 311154), (312, 259295), (390, 207436), (520, 155577), (780, 103718), (1560, 51859)]