245505705

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{380629}}^1$

素因数の和:380680

約数の個数: 16

約数和(自身を含む): 401945280

約数和(自身を除く): 156439575

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 380629, 1141887, 1903145, 5709435, 16367047, 49101141, 81835235, 245505705]

約数ペア:

[(1, 245505705), (3, 81835235), (5, 49101141), (15, 16367047), (43, 5709435), (129, 1903145), (215, 1141887), (645, 380629)]