20319145

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{593}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 10473815

約数列:

[1, 5, 7, 11, 35, 55, 77, 89, 385, 445, 593, 623, 979, 2965, 3115, 4151, 4895, 6523, 6853, 20755, 32615, 34265, 45661, 52777, 228305, 263885, 369439, 580547, 1847195, 2902735, 4063829, 20319145]

約数ペア:

[(1, 20319145), (5, 4063829), (7, 2902735), (11, 1847195), (35, 580547), (55, 369439), (77, 263885), (89, 228305), (385, 52777), (445, 45661), (593, 34265), (623, 32615), (979, 20755), (2965, 6853), (3115, 6523), (4151, 4895)]