87480740

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{82529}}^1$

素因数の和:82591

約数の個数: 24

約数和(自身を含む): 187178040

約数和(自身を除く): 99697300

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 82529, 165058, 330116, 412645, 825290, 1650580, 4374037, 8748074, 17496148, 21870185, 43740370, 87480740]

約数ペア:

[(1, 87480740), (2, 43740370), (4, 21870185), (5, 17496148), (10, 8748074), (20, 4374037), (53, 1650580), (106, 825290), (212, 412645), (265, 330116), (530, 165058), (1060, 82529)]