81034856

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 178848000

約数和(自身を除く): 97813144

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 89, 142, 178, 229, 284, 356, 458, 497, 568, 623, 712, 916, 994, 1246, 1603, 1832, 1988, 2492, 3206, 3976, 4984, 6319, 6412, 12638, 12824, 16259, 20381, 25276, 32518, 40762, 44233, 50552, 65036, 81524, 88466, 113813, 130072, 142667, 163048, 176932, 227626, 285334, 353864, 455252, 570668, 910504, 1141336, 1447051, 2894102, 5788204, 10129357, 11576408, 20258714, 40517428, 81034856]

約数ペア:

[(1, 81034856), (2, 40517428), (4, 20258714), (7, 11576408), (8, 10129357), (14, 5788204), (28, 2894102), (56, 1447051), (71, 1141336), (89, 910504), (142, 570668), (178, 455252), (229, 353864), (284, 285334), (356, 227626), (458, 176932), (497, 163048), (568, 142667), (623, 130072), (712, 113813), (916, 88466), (994, 81524), (1246, 65036), (1603, 50552), (1832, 44233), (1988, 40762), (2492, 32518), (3206, 25276), (3976, 20381), (4984, 16259), (6319, 12824), (6412, 12638)]