78646720

素因数分解:

$2^6\times 5^1\times {\mathrm{245771}}^1$

素因数の和:245788

約数の個数: 28

約数和(自身を含む): 187278264

約数和(自身を除く): 108631544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 245771, 491542, 983084, 1228855, 1966168, 2457710, 3932336, 4915420, 7864672, 9830840, 15729344, 19661680, 39323360, 78646720]

約数ペア:

[(1, 78646720), (2, 39323360), (4, 19661680), (5, 15729344), (8, 9830840), (10, 7864672), (16, 4915420), (20, 3932336), (32, 2457710), (40, 1966168), (64, 1228855), (80, 983084), (160, 491542), (320, 245771)]