4087780

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{653}}^1$

素因数の和:975

約数の個数: 24

約数和(自身を含む): 8624952

約数和(自身を除く): 4537172

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 653, 1252, 1306, 1565, 2612, 3130, 3265, 6260, 6530, 13060, 204389, 408778, 817556, 1021945, 2043890, 4087780]

約数ペア:

[(1, 4087780), (2, 2043890), (4, 1021945), (5, 817556), (10, 408778), (20, 204389), (313, 13060), (626, 6530), (653, 6260), (1252, 3265), (1306, 3130), (1565, 2612)]