85615180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19727}}^1$

素因数の和:19774

約数の個数: 48

約数和(自身を含む): 212115456

約数和(自身を除く): 126500276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 19727, 39454, 78908, 98635, 138089, 197270, 276178, 394540, 552356, 611537, 690445, 1223074, 1380890, 2446148, 2761780, 3057685, 4280759, 6115370, 8561518, 12230740, 17123036, 21403795, 42807590, 85615180]

約数ペア:

[(1, 85615180), (2, 42807590), (4, 21403795), (5, 17123036), (7, 12230740), (10, 8561518), (14, 6115370), (20, 4280759), (28, 3057685), (31, 2761780), (35, 2446148), (62, 1380890), (70, 1223074), (124, 690445), (140, 611537), (155, 552356), (217, 394540), (310, 276178), (434, 197270), (620, 138089), (868, 98635), (1085, 78908), (2170, 39454), (4340, 19727)]