127279930

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{499}}^1\times {\mathrm{1109}}^1$

素因数の和:1638

約数の個数: 32

約数和(自身を含む): 239760000

約数和(自身を除く): 112480070

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 499, 998, 1109, 2218, 2495, 4990, 5545, 11090, 11477, 22954, 25507, 51014, 57385, 114770, 127535, 255070, 553391, 1106782, 2766955, 5533910, 12727993, 25455986, 63639965, 127279930]

約数ペア:

[(1, 127279930), (2, 63639965), (5, 25455986), (10, 12727993), (23, 5533910), (46, 2766955), (115, 1106782), (230, 553391), (499, 255070), (998, 127535), (1109, 114770), (2218, 57385), (2495, 51014), (4990, 25507), (5545, 22954), (11090, 11477)]