1284290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{2621}}^1$

素因数の和:2642

約数の個数: 24

約数和(自身を含む): 2690172

約数和(自身を除く): 1405882

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 2621, 5242, 13105, 18347, 26210, 36694, 91735, 128429, 183470, 256858, 642145, 1284290]

約数ペア:

[(1, 1284290), (2, 642145), (5, 256858), (7, 183470), (10, 128429), (14, 91735), (35, 36694), (49, 26210), (70, 18347), (98, 13105), (245, 5242), (490, 2621)]