1239705

素因数分解:

$3^4\times 5^1\times {\mathrm{3061}}^1$

素因数の和:3078

約数の個数: 20

約数和(自身を含む): 2223012

約数和(自身を除く): 983307

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3061, 9183, 15305, 27549, 45915, 82647, 137745, 247941, 413235, 1239705]

約数ペア:

[(1, 1239705), (3, 413235), (5, 247941), (9, 137745), (15, 82647), (27, 45915), (45, 27549), (81, 15305), (135, 9183), (405, 3061)]