2445775

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{271}}^1$

素因数の和:319

約数の個数: 18

約数和(自身を含む): 3212592

約数和(自身を除く): 766817

約数列:

[1, 5, 19, 25, 95, 271, 361, 475, 1355, 1805, 5149, 6775, 9025, 25745, 97831, 128725, 489155, 2445775]

約数ペア:

[(1, 2445775), (5, 489155), (19, 128725), (25, 97831), (95, 25745), (271, 9025), (361, 6775), (475, 5149), (1355, 1805)]