840262340

素因数分解:

$2^2\times 5^1\times {\mathrm{1907}}^1\times {\mathrm{22031}}^1$

素因数の和:23947

約数の個数: 24

約数和(自身を含む): 1765556352

約数和(自身を除く): 925294012

約数列:

[1, 2, 4, 5, 10, 20, 1907, 3814, 7628, 9535, 19070, 22031, 38140, 44062, 88124, 110155, 220310, 440620, 42013117, 84026234, 168052468, 210065585, 420131170, 840262340]

約数ペア:

[(1, 840262340), (2, 420131170), (4, 210065585), (5, 168052468), (10, 84026234), (20, 42013117), (1907, 440620), (3814, 220310), (7628, 110155), (9535, 88124), (19070, 44062), (22031, 38140)]