1225400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{557}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 3113640

約数和(自身を除く): 1888240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 557, 1100, 1114, 2200, 2228, 2785, 4456, 5570, 6127, 11140, 12254, 13925, 22280, 24508, 27850, 30635, 49016, 55700, 61270, 111400, 122540, 153175, 245080, 306350, 612700, 1225400]

約数ペア:

[(1, 1225400), (2, 612700), (4, 306350), (5, 245080), (8, 153175), (10, 122540), (11, 111400), (20, 61270), (22, 55700), (25, 49016), (40, 30635), (44, 27850), (50, 24508), (55, 22280), (88, 13925), (100, 12254), (110, 11140), (200, 6127), (220, 5570), (275, 4456), (440, 2785), (550, 2228), (557, 2200), (1100, 1114)]