20187306105

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{23201}}^1$

素因数の和:23342

約数の個数: 64

約数和(自身を含む): 35281889280

約数和(自身を除く): 15094583175

約数列:

[1, 3, 5, 15, 19, 43, 57, 71, 95, 129, 213, 215, 285, 355, 645, 817, 1065, 1349, 2451, 3053, 4047, 4085, 6745, 9159, 12255, 15265, 20235, 23201, 45795, 58007, 69603, 116005, 174021, 290035, 348015, 440819, 870105, 997643, 1322457, 1647271, 2204095, 2992929, 4941813, 4988215, 6612285, 8236355, 14964645, 18955217, 24709065, 31298149, 56865651, 70832653, 93894447, 94776085, 156490745, 212497959, 284328255, 354163265, 469472235, 1062489795, 1345820407, 4037461221, 6729102035, 20187306105]

約数ペア:

[(1, 20187306105), (3, 6729102035), (5, 4037461221), (15, 1345820407), (19, 1062489795), (43, 469472235), (57, 354163265), (71, 284328255), (95, 212497959), (129, 156490745), (213, 94776085), (215, 93894447), (285, 70832653), (355, 56865651), (645, 31298149), (817, 24709065), (1065, 18955217), (1349, 14964645), (2451, 8236355), (3053, 6612285), (4047, 4988215), (4085, 4941813), (6745, 2992929), (9159, 2204095), (12255, 1647271), (15265, 1322457), (20235, 997643), (23201, 870105), (45795, 440819), (58007, 348015), (69603, 290035), (116005, 174021)]