129148840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{25423}}^1$

素因数の和:25561

約数の個数: 32

約数和(自身を含む): 292884480

約数和(自身を除く): 163735640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 25423, 50846, 101692, 127115, 203384, 254230, 508460, 1016920, 3228721, 6457442, 12914884, 16143605, 25829768, 32287210, 64574420, 129148840]

約数ペア:

[(1, 129148840), (2, 64574420), (4, 32287210), (5, 25829768), (8, 16143605), (10, 12914884), (20, 6457442), (40, 3228721), (127, 1016920), (254, 508460), (508, 254230), (635, 203384), (1016, 127115), (1270, 101692), (2540, 50846), (5080, 25423)]