128205765

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40127}}^1$

素因数の和:40209

約数の個数: 24

約数和(自身を含む): 225358848

約数和(自身を除く): 97153083

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 40127, 120381, 200635, 361143, 601905, 1805715, 2849017, 8547051, 14245085, 25641153, 42735255, 128205765]

約数ペア:

[(1, 128205765), (3, 42735255), (5, 25641153), (9, 14245085), (15, 8547051), (45, 2849017), (71, 1805715), (213, 601905), (355, 361143), (639, 200635), (1065, 120381), (3195, 40127)]