858963920

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{120641}}^1$

素因数の和:120743

約数の個数: 40

約数和(自身を含む): 2019547080

約数和(自身を除く): 1160583160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 120641, 241282, 482564, 603205, 965128, 1206410, 1930256, 2412820, 4825640, 9651280, 10737049, 21474098, 42948196, 53685245, 85896392, 107370490, 171792784, 214740980, 429481960, 858963920]

約数ペア:

[(1, 858963920), (2, 429481960), (4, 214740980), (5, 171792784), (8, 107370490), (10, 85896392), (16, 53685245), (20, 42948196), (40, 21474098), (80, 10737049), (89, 9651280), (178, 4825640), (356, 2412820), (445, 1930256), (712, 1206410), (890, 965128), (1424, 603205), (1780, 482564), (3560, 241282), (7120, 120641)]