78493120

素因数分解:

$2^6\times 5^1\times {\mathrm{245291}}^1$

素因数の和:245308

約数の個数: 28

約数和(自身を含む): 186912504

約数和(自身を除く): 108419384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 245291, 490582, 981164, 1226455, 1962328, 2452910, 3924656, 4905820, 7849312, 9811640, 15698624, 19623280, 39246560, 78493120]

約数ペア:

[(1, 78493120), (2, 39246560), (4, 19623280), (5, 15698624), (8, 9811640), (10, 7849312), (16, 4905820), (20, 3924656), (32, 2452910), (40, 1962328), (64, 1226455), (80, 981164), (160, 490582), (320, 245291)]