280809507

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4157}}^1$

素因数の和:4283

約数の個数: 32

約数和(自身を含む): 431101440

約数和(自身を除く): 150291933

約数列:

[1, 3, 11, 23, 33, 69, 89, 253, 267, 759, 979, 2047, 2937, 4157, 6141, 12471, 22517, 45727, 67551, 95611, 137181, 286833, 369973, 1051721, 1109919, 3155163, 4069703, 8509379, 12209109, 25528137, 93603169, 280809507]

約数ペア:

[(1, 280809507), (3, 93603169), (11, 25528137), (23, 12209109), (33, 8509379), (69, 4069703), (89, 3155163), (253, 1109919), (267, 1051721), (759, 369973), (979, 286833), (2047, 137181), (2937, 95611), (4157, 67551), (6141, 45727), (12471, 22517)]