389870955

素因数分解:

$3^3\times 5^1\times {\mathrm{2887933}}^1$

素因数の和:2887947

約数の個数: 16

約数和(自身を含む): 693104160

約数和(自身を除く): 303233205

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 2887933, 8663799, 14439665, 25991397, 43318995, 77974191, 129956985, 389870955]

約数ペア:

[(1, 389870955), (3, 129956985), (5, 77974191), (9, 43318995), (15, 25991397), (27, 14439665), (45, 8663799), (135, 2887933)]