28704690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:333

約数の個数: 144

約数和(自身を含む): 90911808

約数和(自身を除く): 62207118

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 49, 63, 69, 70, 90, 98, 105, 115, 126, 138, 147, 161, 207, 210, 230, 245, 283, 294, 315, 322, 345, 414, 441, 483, 490, 566, 630, 690, 735, 805, 849, 882, 966, 1035, 1127, 1415, 1449, 1470, 1610, 1698, 1981, 2070, 2205, 2254, 2415, 2547, 2830, 2898, 3381, 3962, 4245, 4410, 4830, 5094, 5635, 5943, 6509, 6762, 7245, 8490, 9905, 10143, 11270, 11886, 12735, 13018, 13867, 14490, 16905, 17829, 19527, 19810, 20286, 25470, 27734, 29715, 32545, 33810, 35658, 39054, 41601, 45563, 50715, 58581, 59430, 65090, 69335, 83202, 89145, 91126, 97635, 101430, 117162, 124803, 136689, 138670, 178290, 195270, 208005, 227815, 249606, 273378, 292905, 318941, 410067, 416010, 455630, 585810, 624015, 637882, 683445, 820134, 956823, 1248030, 1366890, 1594705, 1913646, 2050335, 2870469, 3189410, 4100670, 4784115, 5740938, 9568230, 14352345, 28704690]

約数ペア:

[(1, 28704690), (2, 14352345), (3, 9568230), (5, 5740938), (6, 4784115), (7, 4100670), (9, 3189410), (10, 2870469), (14, 2050335), (15, 1913646), (18, 1594705), (21, 1366890), (23, 1248030), (30, 956823), (35, 820134), (42, 683445), (45, 637882), (46, 624015), (49, 585810), (63, 455630), (69, 416010), (70, 410067), (90, 318941), (98, 292905), (105, 273378), (115, 249606), (126, 227815), (138, 208005), (147, 195270), (161, 178290), (207, 138670), (210, 136689), (230, 124803), (245, 117162), (283, 101430), (294, 97635), (315, 91126), (322, 89145), (345, 83202), (414, 69335), (441, 65090), (483, 59430), (490, 58581), (566, 50715), (630, 45563), (690, 41601), (735, 39054), (805, 35658), (849, 33810), (882, 32545), (966, 29715), (1035, 27734), (1127, 25470), (1415, 20286), (1449, 19810), (1470, 19527), (1610, 17829), (1698, 16905), (1981, 14490), (2070, 13867), (2205, 13018), (2254, 12735), (2415, 11886), (2547, 11270), (2830, 10143), (2898, 9905), (3381, 8490), (3962, 7245), (4245, 6762), (4410, 6509), (4830, 5943), (5094, 5635)]