210330520

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{72031}}^1$

素因数の和:72115

約数の個数: 32

約数和(自身を含む): 479733120

約数和(自身を除く): 269402600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 72031, 144062, 288124, 360155, 576248, 720310, 1440620, 2881240, 5258263, 10516526, 21033052, 26291315, 42066104, 52582630, 105165260, 210330520]

約数ペア:

[(1, 210330520), (2, 105165260), (4, 52582630), (5, 42066104), (8, 26291315), (10, 21033052), (20, 10516526), (40, 5258263), (73, 2881240), (146, 1440620), (292, 720310), (365, 576248), (584, 360155), (730, 288124), (1460, 144062), (2920, 72031)]