90974900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{22189}}^1$

素因数の和:22244

約数の個数: 36

約数和(自身を含む): 202239660

約数和(自身を除く): 111264760

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 22189, 44378, 88756, 110945, 221890, 443780, 554725, 909749, 1109450, 1819498, 2218900, 3638996, 4548745, 9097490, 18194980, 22743725, 45487450, 90974900]

約数ペア:

[(1, 90974900), (2, 45487450), (4, 22743725), (5, 18194980), (10, 9097490), (20, 4548745), (25, 3638996), (41, 2218900), (50, 1819498), (82, 1109450), (100, 909749), (164, 554725), (205, 443780), (410, 221890), (820, 110945), (1025, 88756), (2050, 44378), (4100, 22189)]