81478298

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{167}}^1\times {\mathrm{331}}^1$

素因数の和:578

約数の個数: 32

約数和(自身を含む): 136539648

約数和(自身を除く): 55061350

約数列:

[1, 2, 11, 22, 67, 134, 167, 331, 334, 662, 737, 1474, 1837, 3641, 3674, 7282, 11189, 22177, 22378, 44354, 55277, 110554, 123079, 243947, 246158, 487894, 608047, 1216094, 3703559, 7407118, 40739149, 81478298]

約数ペア:

[(1, 81478298), (2, 40739149), (11, 7407118), (22, 3703559), (67, 1216094), (134, 608047), (167, 487894), (331, 246158), (334, 243947), (662, 123079), (737, 110554), (1474, 55277), (1837, 44354), (3641, 22378), (3674, 22177), (7282, 11189)]