86631880

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{4157}}^1$

素因数の和:4689

約数の個数: 32

約数和(自身を含む): 195342840

約数和(自身を除く): 108710960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 4157, 4168, 5210, 8314, 10420, 16628, 20785, 20840, 33256, 41570, 83140, 166280, 2165797, 4331594, 8663188, 10828985, 17326376, 21657970, 43315940, 86631880]

約数ペア:

[(1, 86631880), (2, 43315940), (4, 21657970), (5, 17326376), (8, 10828985), (10, 8663188), (20, 4331594), (40, 2165797), (521, 166280), (1042, 83140), (2084, 41570), (2605, 33256), (4157, 20840), (4168, 20785), (5210, 16628), (8314, 10420)]