205412985

素因数分解:

$3^2\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{2837}}^1$

素因数の和:4457

約数の個数: 24

約数和(自身を含む): 356396040

約数和(自身を除く): 150983055

約数列:

[1, 3, 5, 9, 15, 45, 1609, 2837, 4827, 8045, 8511, 14185, 14481, 24135, 25533, 42555, 72405, 127665, 4564733, 13694199, 22823665, 41082597, 68470995, 205412985]

約数ペア:

[(1, 205412985), (3, 68470995), (5, 41082597), (9, 22823665), (15, 13694199), (45, 4564733), (1609, 127665), (2837, 72405), (4827, 42555), (8045, 25533), (8511, 24135), (14185, 14481)]