19304545

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 6822815

約数列:

[1, 5, 13, 47, 65, 71, 89, 235, 355, 445, 611, 923, 1157, 3055, 3337, 4183, 4615, 5785, 6319, 16685, 20915, 31595, 43381, 54379, 82147, 216905, 271895, 296993, 410735, 1484965, 3860909, 19304545]

約数ペア:

[(1, 19304545), (5, 3860909), (13, 1484965), (47, 410735), (65, 296993), (71, 271895), (89, 216905), (235, 82147), (355, 54379), (445, 43381), (611, 31595), (923, 20915), (1157, 16685), (3055, 6319), (3337, 5785), (4183, 4615)]