7780491045

素因数分解:

$3^4\times 5^1\times {\mathrm{19211089}}^1$

素因数の和:19211106

約数の個数: 20

約数和(自身を含む): 13947251340

約数和(自身を除く): 6166760295

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 19211089, 57633267, 96055445, 172899801, 288166335, 518699403, 864499005, 1556098209, 2593497015, 7780491045]

約数ペア:

[(1, 7780491045), (3, 2593497015), (5, 1556098209), (9, 864499005), (15, 518699403), (27, 288166335), (45, 172899801), (81, 96055445), (135, 57633267), (405, 19211089)]