128842728

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:459

約数の個数: 128

約数和(自身を含む): 393465600

約数和(自身を除く): 264622872

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 197, 204, 229, 238, 357, 394, 408, 458, 476, 591, 687, 714, 788, 916, 952, 1182, 1374, 1379, 1428, 1576, 1603, 1832, 2364, 2748, 2758, 2856, 3206, 3349, 3893, 4137, 4728, 4809, 5496, 5516, 6412, 6698, 7786, 8274, 9618, 10047, 11032, 11679, 12824, 13396, 15572, 16548, 19236, 20094, 23358, 23443, 26792, 27251, 31144, 33096, 38472, 40188, 45113, 46716, 46886, 54502, 70329, 80376, 81753, 90226, 93432, 93772, 109004, 135339, 140658, 163506, 180452, 187544, 218008, 270678, 281316, 315791, 327012, 360904, 541356, 562632, 631582, 654024, 766921, 947373, 1082712, 1263164, 1533842, 1894746, 2300763, 2526328, 3067684, 3789492, 4601526, 5368447, 6135368, 7578984, 9203052, 10736894, 16105341, 18406104, 21473788, 32210682, 42947576, 64421364, 128842728]

約数ペア:

[(1, 128842728), (2, 64421364), (3, 42947576), (4, 32210682), (6, 21473788), (7, 18406104), (8, 16105341), (12, 10736894), (14, 9203052), (17, 7578984), (21, 6135368), (24, 5368447), (28, 4601526), (34, 3789492), (42, 3067684), (51, 2526328), (56, 2300763), (68, 1894746), (84, 1533842), (102, 1263164), (119, 1082712), (136, 947373), (168, 766921), (197, 654024), (204, 631582), (229, 562632), (238, 541356), (357, 360904), (394, 327012), (408, 315791), (458, 281316), (476, 270678), (591, 218008), (687, 187544), (714, 180452), (788, 163506), (916, 140658), (952, 135339), (1182, 109004), (1374, 93772), (1379, 93432), (1428, 90226), (1576, 81753), (1603, 80376), (1832, 70329), (2364, 54502), (2748, 46886), (2758, 46716), (2856, 45113), (3206, 40188), (3349, 38472), (3893, 33096), (4137, 31144), (4728, 27251), (4809, 26792), (5496, 23443), (5516, 23358), (6412, 20094), (6698, 19236), (7786, 16548), (8274, 15572), (9618, 13396), (10047, 12824), (11032, 11679)]