20348515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4157}}^1$

素因数の和:4262

約数の個数: 16

約数和(自身を含む): 26943840

約数和(自身を除く): 6595325

約数列:

[1, 5, 11, 55, 89, 445, 979, 4157, 4895, 20785, 45727, 228635, 369973, 1849865, 4069703, 20348515]

約数ペア:

[(1, 20348515), (5, 4069703), (11, 1849865), (55, 369973), (89, 228635), (445, 45727), (979, 20785), (4157, 4895)]