28972615

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 12084665

約数列:

[1, 5, 7, 35, 71, 89, 131, 355, 445, 497, 623, 655, 917, 2485, 3115, 4585, 6319, 9301, 11659, 31595, 44233, 46505, 58295, 65107, 81613, 221165, 325535, 408065, 827789, 4138945, 5794523, 28972615]

約数ペア:

[(1, 28972615), (5, 5794523), (7, 4138945), (35, 827789), (71, 408065), (89, 325535), (131, 221165), (355, 81613), (445, 65107), (497, 58295), (623, 46505), (655, 44233), (917, 31595), (2485, 11659), (3115, 9301), (4585, 6319)]