251436505

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 321159168

約数和(自身を除く): 69722663

約数列:

[1, 5, 31, 53, 127, 155, 241, 265, 635, 1205, 1643, 3937, 6731, 7471, 8215, 12773, 19685, 30607, 33655, 37355, 63865, 153035, 208661, 395963, 948817, 1043305, 1622171, 1979815, 4744085, 8110855, 50287301, 251436505]

約数ペア:

[(1, 251436505), (5, 50287301), (31, 8110855), (53, 4744085), (127, 1979815), (155, 1622171), (241, 1043305), (265, 948817), (635, 395963), (1205, 208661), (1643, 153035), (3937, 63865), (6731, 37355), (7471, 33655), (8215, 30607), (12773, 19685)]