19188845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 6938515

約数列:

[1, 5, 13, 31, 65, 89, 107, 155, 403, 445, 535, 1157, 1391, 2015, 2759, 3317, 5785, 6955, 9523, 13795, 16585, 35867, 43121, 47615, 123799, 179335, 215605, 295213, 618995, 1476065, 3837769, 19188845]

約数ペア:

[(1, 19188845), (5, 3837769), (13, 1476065), (31, 618995), (65, 295213), (89, 215605), (107, 179335), (155, 123799), (403, 47615), (445, 43121), (535, 35867), (1157, 16585), (1391, 13795), (2015, 9523), (2759, 6955), (3317, 5785)]