28460440

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{3931}}^1$

素因数の和:4123

約数の個数: 32

約数和(自身を含む): 64406160

約数和(自身を除く): 35945720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 3931, 7240, 7862, 15724, 19655, 31448, 39310, 78620, 157240, 711511, 1423022, 2846044, 3557555, 5692088, 7115110, 14230220, 28460440]

約数ペア:

[(1, 28460440), (2, 14230220), (4, 7115110), (5, 5692088), (8, 3557555), (10, 2846044), (20, 1423022), (40, 711511), (181, 157240), (362, 78620), (724, 39310), (905, 31448), (1448, 19655), (1810, 15724), (3620, 7862), (3931, 7240)]