20258714

素因数分解:

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

素因数の和:398

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 15510886

約数列:

[1, 2, 7, 14, 71, 89, 142, 178, 229, 458, 497, 623, 994, 1246, 1603, 3206, 6319, 12638, 16259, 20381, 32518, 40762, 44233, 88466, 113813, 142667, 227626, 285334, 1447051, 2894102, 10129357, 20258714]

約数ペア:

[(1, 20258714), (2, 10129357), (7, 2894102), (14, 1447051), (71, 285334), (89, 227626), (142, 142667), (178, 113813), (229, 88466), (458, 44233), (497, 40762), (623, 32518), (994, 20381), (1246, 16259), (1603, 12638), (3206, 6319)]