642000945

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{423763}}^1$

素因数の和:423872

約数の個数: 16

約数和(自身を含む): 1037374272

約数和(自身を除く): 395373327

約数列:

[1, 3, 5, 15, 101, 303, 505, 1515, 423763, 1271289, 2118815, 6356445, 42800063, 128400189, 214000315, 642000945]

約数ペア:

[(1, 642000945), (3, 214000315), (5, 128400189), (15, 42800063), (101, 6356445), (303, 2118815), (505, 1271289), (1515, 423763)]