25538900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6229}}^1$

素因数の和:6284

約数の個数: 36

約数和(自身を含む): 56780220

約数和(自身を除く): 31241320

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 6229, 12458, 24916, 31145, 62290, 124580, 155725, 255389, 311450, 510778, 622900, 1021556, 1276945, 2553890, 5107780, 6384725, 12769450, 25538900]

約数ペア:

[(1, 25538900), (2, 12769450), (4, 6384725), (5, 5107780), (10, 2553890), (20, 1276945), (25, 1021556), (41, 622900), (50, 510778), (82, 311450), (100, 255389), (164, 155725), (205, 124580), (410, 62290), (820, 31145), (1025, 24916), (2050, 12458), (4100, 6229)]