199990465

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:609

約数の個数: 32

約数和(自身を含む): 262020096

約数和(自身を除く): 62029631

約数列:

[1, 5, 17, 53, 85, 103, 265, 431, 515, 901, 1751, 2155, 4505, 5459, 7327, 8755, 22843, 27295, 36635, 44393, 92803, 114215, 221965, 388331, 464015, 754681, 1941655, 2352829, 3773405, 11764145, 39998093, 199990465]

約数ペア:

[(1, 199990465), (5, 39998093), (17, 11764145), (53, 3773405), (85, 2352829), (103, 1941655), (265, 754681), (431, 464015), (515, 388331), (901, 221965), (1751, 114215), (2155, 92803), (4505, 44393), (5459, 36635), (7327, 27295), (8755, 22843)]