80491720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{87491}}^1$

素因数の和:87525

約数の個数: 32

約数和(自身を含む): 188982720

約数和(自身を除く): 108491000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 87491, 174982, 349964, 437455, 699928, 874910, 1749820, 2012293, 3499640, 4024586, 8049172, 10061465, 16098344, 20122930, 40245860, 80491720]

約数ペア:

[(1, 80491720), (2, 40245860), (4, 20122930), (5, 16098344), (8, 10061465), (10, 8049172), (20, 4024586), (23, 3499640), (40, 2012293), (46, 1749820), (92, 874910), (115, 699928), (184, 437455), (230, 349964), (460, 174982), (920, 87491)]