18776875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{2311}}^1$

素因数の和:2344

約数の個数: 20

約数和(自身を含む): 25279408

約数和(自身を除く): 6502533

約数列:

[1, 5, 13, 25, 65, 125, 325, 625, 1625, 2311, 8125, 11555, 30043, 57775, 150215, 288875, 751075, 1444375, 3755375, 18776875]

約数ペア:

[(1, 18776875), (5, 3755375), (13, 1444375), (25, 751075), (65, 288875), (125, 150215), (325, 57775), (625, 30043), (1625, 11555), (2311, 8125)]