81144125

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 105670656

約数和(自身を除く): 24526531

約数列:

[1, 5, 25, 41, 71, 125, 205, 223, 355, 1025, 1115, 1775, 2911, 5125, 5575, 8875, 9143, 14555, 15833, 27875, 45715, 72775, 79165, 228575, 363875, 395825, 649153, 1142875, 1979125, 3245765, 16228825, 81144125]

約数ペア:

[(1, 81144125), (5, 16228825), (25, 3245765), (41, 1979125), (71, 1142875), (125, 649153), (205, 395825), (223, 363875), (355, 228575), (1025, 79165), (1115, 72775), (1775, 45715), (2911, 27875), (5125, 15833), (5575, 14555), (8875, 9143)]