8005780

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{653}}^1$

素因数の和:1275

約数の個数: 24

約数和(自身を含む): 16865352

約数和(自身を除く): 8859572

約数列:

[1, 2, 4, 5, 10, 20, 613, 653, 1226, 1306, 2452, 2612, 3065, 3265, 6130, 6530, 12260, 13060, 400289, 800578, 1601156, 2001445, 4002890, 8005780]

約数ペア:

[(1, 8005780), (2, 4002890), (4, 2001445), (5, 1601156), (10, 800578), (20, 400289), (613, 13060), (653, 12260), (1226, 6530), (1306, 6130), (2452, 3265), (2612, 3065)]