51864320

素因数分解:

$2^8\times 5^1\times {\mathrm{40519}}^1$

素因数の和:40540

約数の個数: 36

約数和(自身を含む): 124234320

約数和(自身を除く): 72370000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 40519, 81038, 162076, 202595, 324152, 405190, 648304, 810380, 1296608, 1620760, 2593216, 3241520, 5186432, 6483040, 10372864, 12966080, 25932160, 51864320]

約数ペア:

[(1, 51864320), (2, 25932160), (4, 12966080), (5, 10372864), (8, 6483040), (10, 5186432), (16, 3241520), (20, 2593216), (32, 1620760), (40, 1296608), (64, 810380), (80, 648304), (128, 405190), (160, 324152), (256, 202595), (320, 162076), (640, 81038), (1280, 40519)]