201991375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{85049}}^1$

素因数の和:85083

約数の個数: 16

約数和(自身を含む): 265356000

約数和(自身を除く): 63364625

約数列:

[1, 5, 19, 25, 95, 125, 475, 2375, 85049, 425245, 1615931, 2126225, 8079655, 10631125, 40398275, 201991375]

約数ペア:

[(1, 201991375), (5, 40398275), (19, 10631125), (25, 8079655), (95, 2126225), (125, 1615931), (475, 425245), (2375, 85049)]