19993470

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:127

約数の個数: 128

約数和(自身を含む): 58752000

約数和(自身を除く): 38758530

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 29, 30, 35, 42, 49, 58, 67, 70, 87, 98, 105, 134, 145, 147, 174, 201, 203, 210, 245, 290, 294, 335, 343, 402, 406, 435, 469, 490, 609, 670, 686, 735, 870, 938, 1005, 1015, 1029, 1218, 1407, 1421, 1470, 1715, 1943, 2010, 2030, 2058, 2345, 2814, 2842, 3045, 3283, 3430, 3886, 4263, 4690, 5145, 5829, 6090, 6566, 7035, 7105, 8526, 9715, 9849, 9947, 10290, 11658, 13601, 14070, 14210, 16415, 19430, 19698, 19894, 21315, 22981, 27202, 29145, 29841, 32830, 40803, 42630, 45962, 49245, 49735, 58290, 59682, 68005, 68943, 81606, 95207, 98490, 99470, 114905, 136010, 137886, 149205, 190414, 204015, 229810, 285621, 298410, 344715, 408030, 476035, 571242, 666449, 689430, 952070, 1332898, 1428105, 1999347, 2856210, 3332245, 3998694, 6664490, 9996735, 19993470]

約数ペア:

[(1, 19993470), (2, 9996735), (3, 6664490), (5, 3998694), (6, 3332245), (7, 2856210), (10, 1999347), (14, 1428105), (15, 1332898), (21, 952070), (29, 689430), (30, 666449), (35, 571242), (42, 476035), (49, 408030), (58, 344715), (67, 298410), (70, 285621), (87, 229810), (98, 204015), (105, 190414), (134, 149205), (145, 137886), (147, 136010), (174, 114905), (201, 99470), (203, 98490), (210, 95207), (245, 81606), (290, 68943), (294, 68005), (335, 59682), (343, 58290), (402, 49735), (406, 49245), (435, 45962), (469, 42630), (490, 40803), (609, 32830), (670, 29841), (686, 29145), (735, 27202), (870, 22981), (938, 21315), (1005, 19894), (1015, 19698), (1029, 19430), (1218, 16415), (1407, 14210), (1421, 14070), (1470, 13601), (1715, 11658), (1943, 10290), (2010, 9947), (2030, 9849), (2058, 9715), (2345, 8526), (2814, 7105), (2842, 7035), (3045, 6566), (3283, 6090), (3430, 5829), (3886, 5145), (4263, 4690)]