278340505

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{12569}}^1$

素因数の和:12720

約数の個数: 16

約数和(自身を含む): 345121920

約数和(自身を除く): 66781415

約数列:

[1, 5, 43, 103, 215, 515, 4429, 12569, 22145, 62845, 540467, 1294607, 2702335, 6473035, 55668101, 278340505]

約数ペア:

[(1, 278340505), (5, 55668101), (43, 6473035), (103, 2702335), (215, 1294607), (515, 540467), (4429, 62845), (12569, 22145)]