18331520

素因数分解:

$2^7\times 5^1\times {\mathrm{28643}}^1$

素因数の和:28662

約数の個数: 32

約数和(自身を含む): 43825320

約数和(自身を除く): 25493800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28643, 57286, 114572, 143215, 229144, 286430, 458288, 572860, 916576, 1145720, 1833152, 2291440, 3666304, 4582880, 9165760, 18331520]

約数ペア:

[(1, 18331520), (2, 9165760), (4, 4582880), (5, 3666304), (8, 2291440), (10, 1833152), (16, 1145720), (20, 916576), (32, 572860), (40, 458288), (64, 286430), (80, 229144), (128, 143215), (160, 114572), (320, 57286), (640, 28643)]