280803460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2005739}}^1$

素因数の和:2005755

約数の個数: 24

約数和(自身を含む): 673928640

約数和(自身を除く): 393125180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2005739, 4011478, 8022956, 10028695, 14040173, 20057390, 28080346, 40114780, 56160692, 70200865, 140401730, 280803460]

約数ペア:

[(1, 280803460), (2, 140401730), (4, 70200865), (5, 56160692), (7, 40114780), (10, 28080346), (14, 20057390), (20, 14040173), (28, 10028695), (35, 8022956), (70, 4011478), (140, 2005739)]