15871305

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 26345088

約数和(自身を除く): 10473783

約数列:

[1, 3, 5, 15, 41, 123, 131, 197, 205, 393, 591, 615, 655, 985, 1965, 2955, 5371, 8077, 16113, 24231, 25807, 26855, 40385, 77421, 80565, 121155, 129035, 387105, 1058087, 3174261, 5290435, 15871305]

約数ペア:

[(1, 15871305), (3, 5290435), (5, 3174261), (15, 1058087), (41, 387105), (123, 129035), (131, 121155), (197, 80565), (205, 77421), (393, 40385), (591, 26855), (615, 25807), (655, 24231), (985, 16113), (1965, 8077), (2955, 5371)]