1990025681

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{587}}^1\times {\mathrm{1609}}^1$

素因数の和:2253

約数の個数: 24

約数和(自身を含む): 2374273440

約数和(自身を除く): 384247759

約数列:

[1, 7, 43, 49, 301, 587, 1609, 2107, 4109, 11263, 25241, 28763, 69187, 78841, 176687, 484309, 944483, 1236809, 3390163, 6611381, 40612769, 46279667, 284289383, 1990025681]

約数ペア:

[(1, 1990025681), (7, 284289383), (43, 46279667), (49, 40612769), (301, 6611381), (587, 3390163), (1609, 1236809), (2107, 944483), (4109, 484309), (11263, 176687), (25241, 78841), (28763, 69187)]