208025125

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21613}}^1$

素因数の和:21646

約数の個数: 32

約数和(自身を含む): 323691264

約数和(自身を除く): 115666139

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 875, 1375, 1925, 9625, 21613, 108065, 151291, 237743, 540325, 756455, 1188715, 1664201, 2701625, 3782275, 5943575, 8321005, 18911375, 29717875, 41605025, 208025125]

約数ペア:

[(1, 208025125), (5, 41605025), (7, 29717875), (11, 18911375), (25, 8321005), (35, 5943575), (55, 3782275), (77, 2701625), (125, 1664201), (175, 1188715), (275, 756455), (385, 540325), (875, 237743), (1375, 151291), (1925, 108065), (9625, 21613)]