25725860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 55989360

約数和(自身を除く): 30263500

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 137, 164, 205, 229, 274, 410, 458, 548, 685, 820, 916, 1145, 1370, 2290, 2740, 4580, 5617, 9389, 11234, 18778, 22468, 28085, 31373, 37556, 46945, 56170, 62746, 93890, 112340, 125492, 156865, 187780, 313730, 627460, 1286293, 2572586, 5145172, 6431465, 12862930, 25725860]

約数ペア:

[(1, 25725860), (2, 12862930), (4, 6431465), (5, 5145172), (10, 2572586), (20, 1286293), (41, 627460), (82, 313730), (137, 187780), (164, 156865), (205, 125492), (229, 112340), (274, 93890), (410, 62746), (458, 56170), (548, 46945), (685, 37556), (820, 31373), (916, 28085), (1145, 22468), (1370, 18778), (2290, 11234), (2740, 9389), (4580, 5617)]