1819375

素因数分解:

$5^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 20

約数和(自身を含む): 2361744

約数和(自身を除く): 542369

約数列:

[1, 5, 25, 41, 71, 125, 205, 355, 625, 1025, 1775, 2911, 5125, 8875, 14555, 25625, 44375, 72775, 363875, 1819375]

約数ペア:

[(1, 1819375), (5, 363875), (25, 72775), (41, 44375), (71, 25625), (125, 14555), (205, 8875), (355, 5125), (625, 2911), (1025, 1775)]