72120025

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 92994048

約数和(自身を除く): 20874023

約数列:

[1, 5, 25, 41, 71, 205, 355, 991, 1025, 1775, 2911, 4955, 14555, 24775, 40631, 70361, 72775, 203155, 351805, 1015775, 1759025, 2884801, 14424005, 72120025]

約数ペア:

[(1, 72120025), (5, 14424005), (25, 2884801), (41, 1759025), (71, 1015775), (205, 351805), (355, 203155), (991, 72775), (1025, 70361), (1775, 40631), (2911, 24775), (4955, 14555)]