15966280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 39631680

約数和(自身を除く): 23665400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 131, 220, 262, 277, 440, 524, 554, 655, 1048, 1108, 1310, 1385, 1441, 2216, 2620, 2770, 2882, 3047, 5240, 5540, 5764, 6094, 7205, 11080, 11528, 12188, 14410, 15235, 24376, 28820, 30470, 36287, 57640, 60940, 72574, 121880, 145148, 181435, 290296, 362870, 399157, 725740, 798314, 1451480, 1596628, 1995785, 3193256, 3991570, 7983140, 15966280]

約数ペア:

[(1, 15966280), (2, 7983140), (4, 3991570), (5, 3193256), (8, 1995785), (10, 1596628), (11, 1451480), (20, 798314), (22, 725740), (40, 399157), (44, 362870), (55, 290296), (88, 181435), (110, 145148), (131, 121880), (220, 72574), (262, 60940), (277, 57640), (440, 36287), (524, 30470), (554, 28820), (655, 24376), (1048, 15235), (1108, 14410), (1310, 12188), (1385, 11528), (1441, 11080), (2216, 7205), (2620, 6094), (2770, 5764), (2882, 5540), (3047, 5240)]