81409972

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{18059}}^1$

素因数の和:18100

約数の個数: 36

約数和(自身を含む): 172942560

約数和(自身を除く): 91532588

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4508, 18059, 36118, 72236, 126413, 252826, 415357, 505652, 830714, 884891, 1661428, 1769782, 2907499, 3539564, 5814998, 11629996, 20352493, 40704986, 81409972]

約数ペア:

[(1, 81409972), (2, 40704986), (4, 20352493), (7, 11629996), (14, 5814998), (23, 3539564), (28, 2907499), (46, 1769782), (49, 1661428), (92, 884891), (98, 830714), (161, 505652), (196, 415357), (322, 252826), (644, 126413), (1127, 72236), (2254, 36118), (4508, 18059)]