2678920525

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 3489526656

約数和(自身を除く): 810606131

約数列:

[1, 5, 25, 41, 71, 131, 205, 281, 355, 655, 1025, 1405, 1775, 2911, 3275, 5371, 7025, 9301, 11521, 14555, 19951, 26855, 36811, 46505, 57605, 72775, 99755, 134275, 184055, 232525, 288025, 381341, 498775, 817991, 920275, 1509251, 1906705, 2613581, 4089955, 7546255, 9533525, 13067905, 20449775, 37731275, 65339525, 107156821, 535784105, 2678920525]

約数ペア:

[(1, 2678920525), (5, 535784105), (25, 107156821), (41, 65339525), (71, 37731275), (131, 20449775), (205, 13067905), (281, 9533525), (355, 7546255), (655, 4089955), (1025, 2613581), (1405, 1906705), (1775, 1509251), (2911, 920275), (3275, 817991), (5371, 498775), (7025, 381341), (9301, 288025), (11521, 232525), (14555, 184055), (19951, 134275), (26855, 99755), (36811, 72775), (46505, 57605)]