212693375

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{991}}^1$

素因数の和:1124

約数の個数: 32

約数和(自身を含む): 284124672

約数和(自身を除く): 71431297

約数列:

[1, 5, 17, 25, 85, 101, 125, 425, 505, 991, 1717, 2125, 2525, 4955, 8585, 12625, 16847, 24775, 42925, 84235, 100091, 123875, 214625, 421175, 500455, 1701547, 2105875, 2502275, 8507735, 12511375, 42538675, 212693375]

約数ペア:

[(1, 212693375), (5, 42538675), (17, 12511375), (25, 8507735), (85, 2502275), (101, 2105875), (125, 1701547), (425, 500455), (505, 421175), (991, 214625), (1717, 123875), (2125, 100091), (2525, 84235), (4955, 42925), (8585, 24775), (12625, 16847)]