661623984

素因数分解:

$2^4\times 3^3\times 7^1\times {\mathrm{331}}^1\times {\mathrm{661}}^1$

素因数の和:1016

約数の個数: 160

約数和(自身を含む): 2180257280

約数和(自身を除く): 1518633296

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 84, 108, 112, 126, 144, 168, 189, 216, 252, 331, 336, 378, 432, 504, 661, 662, 756, 993, 1008, 1322, 1324, 1512, 1983, 1986, 2317, 2644, 2648, 2979, 3024, 3966, 3972, 4627, 4634, 5288, 5296, 5949, 5958, 6951, 7932, 7944, 8937, 9254, 9268, 10576, 11898, 11916, 13881, 13902, 15864, 15888, 17847, 17874, 18508, 18536, 20853, 23796, 23832, 27762, 27804, 31728, 35694, 35748, 37016, 37072, 41643, 41706, 47592, 47664, 55524, 55608, 62559, 71388, 71496, 74032, 83286, 83412, 95184, 111048, 111216, 124929, 125118, 142776, 142992, 166572, 166824, 218791, 222096, 249858, 250236, 285552, 333144, 333648, 437582, 499716, 500472, 656373, 666288, 875164, 999432, 1000944, 1312746, 1531537, 1750328, 1969119, 1998864, 2625492, 3063074, 3500656, 3938238, 4594611, 5250984, 5907357, 6126148, 7876476, 9189222, 10501968, 11814714, 12252296, 13783833, 15752952, 18378444, 23629428, 24504592, 27567666, 31505904, 36756888, 41351499, 47258856, 55135332, 73513776, 82702998, 94517712, 110270664, 165405996, 220541328, 330811992, 661623984]

約数ペア:

[(1, 661623984), (2, 330811992), (3, 220541328), (4, 165405996), (6, 110270664), (7, 94517712), (8, 82702998), (9, 73513776), (12, 55135332), (14, 47258856), (16, 41351499), (18, 36756888), (21, 31505904), (24, 27567666), (27, 24504592), (28, 23629428), (36, 18378444), (42, 15752952), (48, 13783833), (54, 12252296), (56, 11814714), (63, 10501968), (72, 9189222), (84, 7876476), (108, 6126148), (112, 5907357), (126, 5250984), (144, 4594611), (168, 3938238), (189, 3500656), (216, 3063074), (252, 2625492), (331, 1998864), (336, 1969119), (378, 1750328), (432, 1531537), (504, 1312746), (661, 1000944), (662, 999432), (756, 875164), (993, 666288), (1008, 656373), (1322, 500472), (1324, 499716), (1512, 437582), (1983, 333648), (1986, 333144), (2317, 285552), (2644, 250236), (2648, 249858), (2979, 222096), (3024, 218791), (3966, 166824), (3972, 166572), (4627, 142992), (4634, 142776), (5288, 125118), (5296, 124929), (5949, 111216), (5958, 111048), (6951, 95184), (7932, 83412), (7944, 83286), (8937, 74032), (9254, 71496), (9268, 71388), (10576, 62559), (11898, 55608), (11916, 55524), (13881, 47664), (13902, 47592), (15864, 41706), (15888, 41643), (17847, 37072), (17874, 37016), (18508, 35748), (18536, 35694), (20853, 31728), (23796, 27804), (23832, 27762)]