1388398180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5339993}}^1$

素因数の和:5340015

約数の個数: 24

約数和(自身を含む): 3139916472

約数和(自身を除く): 1751518292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 5339993, 10679986, 21359972, 26699965, 53399930, 69419909, 106799860, 138839818, 277679636, 347099545, 694199090, 1388398180]

約数ペア:

[(1, 1388398180), (2, 694199090), (4, 347099545), (5, 277679636), (10, 138839818), (13, 106799860), (20, 69419909), (26, 53399930), (52, 26699965), (65, 21359972), (130, 10679986), (260, 5339993)]