256576385

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{2351}}^1$

素因数の和:2465

約数の個数: 32

約数和(自身を含む): 350880768

約数和(自身を除く): 94304383

約数列:

[1, 5, 13, 23, 65, 73, 115, 299, 365, 949, 1495, 1679, 2351, 4745, 8395, 11755, 21827, 30563, 54073, 109135, 152815, 171623, 270365, 702949, 858115, 2231099, 3514745, 3947329, 11155495, 19736645, 51315277, 256576385]

約数ペア:

[(1, 256576385), (5, 51315277), (13, 19736645), (23, 11155495), (65, 3947329), (73, 3514745), (115, 2231099), (299, 858115), (365, 702949), (949, 270365), (1495, 171623), (1679, 152815), (2351, 109135), (4745, 54073), (8395, 30563), (11755, 21827)]