78903040

素因数分解:

$2^8\times 5^1\times {\mathrm{61643}}^1$

素因数の和:61664

約数の個数: 36

約数和(自身を含む): 189000504

約数和(自身を除く): 110097464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 61643, 123286, 246572, 308215, 493144, 616430, 986288, 1232860, 1972576, 2465720, 3945152, 4931440, 7890304, 9862880, 15780608, 19725760, 39451520, 78903040]

約数ペア:

[(1, 78903040), (2, 39451520), (4, 19725760), (5, 15780608), (8, 9862880), (10, 7890304), (16, 4931440), (20, 3945152), (32, 2465720), (40, 1972576), (64, 1232860), (80, 986288), (128, 616430), (160, 493144), (256, 308215), (320, 246572), (640, 123286), (1280, 61643)]