20287288

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{829}}^1$

素因数の和:884

約数の個数: 64

約数和(自身を含む): 47808000

約数和(自身を除く): 27520712

約数列:

[1, 2, 4, 7, 8, 14, 19, 23, 28, 38, 46, 56, 76, 92, 133, 152, 161, 184, 266, 322, 437, 532, 644, 829, 874, 1064, 1288, 1658, 1748, 3059, 3316, 3496, 5803, 6118, 6632, 11606, 12236, 15751, 19067, 23212, 24472, 31502, 38134, 46424, 63004, 76268, 110257, 126008, 133469, 152536, 220514, 266938, 362273, 441028, 533876, 724546, 882056, 1067752, 1449092, 2535911, 2898184, 5071822, 10143644, 20287288]

約数ペア:

[(1, 20287288), (2, 10143644), (4, 5071822), (7, 2898184), (8, 2535911), (14, 1449092), (19, 1067752), (23, 882056), (28, 724546), (38, 533876), (46, 441028), (56, 362273), (76, 266938), (92, 220514), (133, 152536), (152, 133469), (161, 126008), (184, 110257), (266, 76268), (322, 63004), (437, 46424), (532, 38134), (644, 31502), (829, 24472), (874, 23212), (1064, 19067), (1288, 15751), (1658, 12236), (1748, 11606), (3059, 6632), (3316, 6118), (3496, 5803)]