139884040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^2\times {\mathrm{181}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 318771180

約数和(自身を除く): 178887140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 181, 278, 362, 556, 695, 724, 905, 1112, 1390, 1448, 1810, 2780, 3620, 5560, 7240, 19321, 25159, 38642, 50318, 77284, 96605, 100636, 125795, 154568, 193210, 201272, 251590, 386420, 503180, 772840, 1006360, 3497101, 6994202, 13988404, 17485505, 27976808, 34971010, 69942020, 139884040]

約数ペア:

[(1, 139884040), (2, 69942020), (4, 34971010), (5, 27976808), (8, 17485505), (10, 13988404), (20, 6994202), (40, 3497101), (139, 1006360), (181, 772840), (278, 503180), (362, 386420), (556, 251590), (695, 201272), (724, 193210), (905, 154568), (1112, 125795), (1390, 100636), (1448, 96605), (1810, 77284), (2780, 50318), (3620, 38642), (5560, 25159), (7240, 19321)]