1645648

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{631}}^1$

素因数の和:802

約数の個数: 20

約数和(自身を含む): 3213088

約数和(自身を除く): 1567440

約数列:

[1, 2, 4, 8, 16, 163, 326, 631, 652, 1262, 1304, 2524, 2608, 5048, 10096, 102853, 205706, 411412, 822824, 1645648]

約数ペア:

[(1, 1645648), (2, 822824), (4, 411412), (8, 205706), (16, 102853), (163, 10096), (326, 5048), (631, 2608), (652, 2524), (1262, 1304)]