20862125

素因数分解:

$5^3\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:182

約数の個数: 32

約数和(自身を含む): 27495936

約数和(自身を除く): 6633811

約数列:

[1, 5, 25, 47, 53, 67, 125, 235, 265, 335, 1175, 1325, 1675, 2491, 3149, 3551, 5875, 6625, 8375, 12455, 15745, 17755, 62275, 78725, 88775, 166897, 311375, 393625, 443875, 834485, 4172425, 20862125]

約数ペア:

[(1, 20862125), (5, 4172425), (25, 834485), (47, 443875), (53, 393625), (67, 311375), (125, 166897), (235, 88775), (265, 78725), (335, 62275), (1175, 17755), (1325, 15745), (1675, 12455), (2491, 8375), (3149, 6625), (3551, 5875)]