256292820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1901}}^1$

素因数の和:2030

約数の個数: 144

約数和(自身を含む): 897257088

約数和(自身を除く): 640964268

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 107, 126, 140, 180, 210, 214, 252, 315, 321, 420, 428, 535, 630, 642, 749, 963, 1070, 1260, 1284, 1498, 1605, 1901, 1926, 2140, 2247, 2996, 3210, 3745, 3802, 3852, 4494, 4815, 5703, 6420, 6741, 7490, 7604, 8988, 9505, 9630, 11235, 11406, 13307, 13482, 14980, 17109, 19010, 19260, 22470, 22812, 26614, 26964, 28515, 33705, 34218, 38020, 39921, 44940, 53228, 57030, 66535, 67410, 68436, 79842, 85545, 114060, 119763, 133070, 134820, 159684, 171090, 199605, 203407, 239526, 266140, 342180, 399210, 406814, 479052, 598815, 610221, 798420, 813628, 1017035, 1197630, 1220442, 1423849, 1830663, 2034070, 2395260, 2440884, 2847698, 3051105, 3661326, 4068140, 4271547, 5695396, 6102210, 7119245, 7322652, 8543094, 9153315, 12204420, 12814641, 14238490, 17086188, 18306630, 21357735, 25629282, 28476980, 36613260, 42715470, 51258564, 64073205, 85430940, 128146410, 256292820]

約数ペア:

[(1, 256292820), (2, 128146410), (3, 85430940), (4, 64073205), (5, 51258564), (6, 42715470), (7, 36613260), (9, 28476980), (10, 25629282), (12, 21357735), (14, 18306630), (15, 17086188), (18, 14238490), (20, 12814641), (21, 12204420), (28, 9153315), (30, 8543094), (35, 7322652), (36, 7119245), (42, 6102210), (45, 5695396), (60, 4271547), (63, 4068140), (70, 3661326), (84, 3051105), (90, 2847698), (105, 2440884), (107, 2395260), (126, 2034070), (140, 1830663), (180, 1423849), (210, 1220442), (214, 1197630), (252, 1017035), (315, 813628), (321, 798420), (420, 610221), (428, 598815), (535, 479052), (630, 406814), (642, 399210), (749, 342180), (963, 266140), (1070, 239526), (1260, 203407), (1284, 199605), (1498, 171090), (1605, 159684), (1901, 134820), (1926, 133070), (2140, 119763), (2247, 114060), (2996, 85545), (3210, 79842), (3745, 68436), (3802, 67410), (3852, 66535), (4494, 57030), (4815, 53228), (5703, 44940), (6420, 39921), (6741, 38020), (7490, 34218), (7604, 33705), (8988, 28515), (9505, 26964), (9630, 26614), (11235, 22812), (11406, 22470), (13307, 19260), (13482, 19010), (14980, 17109)]