81760004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{739}}^1\times {\mathrm{1627}}^1$

素因数の和:2387

約数の個数: 24

約数和(自身を含む): 151794720

約数和(自身を除く): 70034716

約数列:

[1, 2, 4, 17, 34, 68, 739, 1478, 1627, 2956, 3254, 6508, 12563, 25126, 27659, 50252, 55318, 110636, 1202353, 2404706, 4809412, 20440001, 40880002, 81760004]

約数ペア:

[(1, 81760004), (2, 40880002), (4, 20440001), (17, 4809412), (34, 2404706), (68, 1202353), (739, 110636), (1478, 55318), (1627, 50252), (2956, 27659), (3254, 25126), (6508, 12563)]