640299296

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 192

約数和(自身を含む): 1650087936

約数和(自身を除く): 1009788640

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 32, 41, 52, 56, 62, 82, 91, 104, 112, 124, 164, 173, 182, 208, 217, 224, 248, 287, 328, 346, 364, 403, 416, 434, 496, 533, 574, 656, 692, 728, 806, 868, 992, 1066, 1148, 1211, 1271, 1312, 1384, 1456, 1612, 1736, 2132, 2249, 2296, 2422, 2542, 2768, 2821, 2912, 3224, 3472, 3731, 4264, 4498, 4592, 4844, 5084, 5363, 5536, 5642, 6448, 6944, 7093, 7462, 8528, 8897, 8996, 9184, 9688, 10168, 10726, 11284, 12896, 14186, 14924, 15743, 16523, 17056, 17794, 17992, 19376, 20336, 21452, 22568, 28372, 29848, 31486, 33046, 35588, 35984, 37541, 38752, 40672, 42904, 45136, 49651, 56744, 59696, 62972, 66092, 69719, 71176, 71968, 75082, 85808, 90272, 92209, 99302, 113488, 115661, 119392, 125944, 132184, 139438, 142352, 150164, 171616, 184418, 198604, 219883, 226976, 231322, 251888, 264368, 278876, 284704, 300328, 368836, 397208, 439766, 462644, 488033, 503776, 528736, 557752, 600656, 645463, 737672, 794416, 879532, 925288, 976066, 1115504, 1201312, 1290926, 1475344, 1539181, 1588832, 1759064, 1850576, 1952132, 2231008, 2581852, 2858479, 2950688, 3078362, 3518128, 3701152, 3904264, 5163704, 5716958, 6156724, 7036256, 7808528, 10327408, 11433916, 12313448, 15617056, 20009353, 20654816, 22867832, 24626896, 40018706, 45735664, 49253792, 80037412, 91471328, 160074824, 320149648, 640299296]

約数ペア:

[(1, 640299296), (2, 320149648), (4, 160074824), (7, 91471328), (8, 80037412), (13, 49253792), (14, 45735664), (16, 40018706), (26, 24626896), (28, 22867832), (31, 20654816), (32, 20009353), (41, 15617056), (52, 12313448), (56, 11433916), (62, 10327408), (82, 7808528), (91, 7036256), (104, 6156724), (112, 5716958), (124, 5163704), (164, 3904264), (173, 3701152), (182, 3518128), (208, 3078362), (217, 2950688), (224, 2858479), (248, 2581852), (287, 2231008), (328, 1952132), (346, 1850576), (364, 1759064), (403, 1588832), (416, 1539181), (434, 1475344), (496, 1290926), (533, 1201312), (574, 1115504), (656, 976066), (692, 925288), (728, 879532), (806, 794416), (868, 737672), (992, 645463), (1066, 600656), (1148, 557752), (1211, 528736), (1271, 503776), (1312, 488033), (1384, 462644), (1456, 439766), (1612, 397208), (1736, 368836), (2132, 300328), (2249, 284704), (2296, 278876), (2422, 264368), (2542, 251888), (2768, 231322), (2821, 226976), (2912, 219883), (3224, 198604), (3472, 184418), (3731, 171616), (4264, 150164), (4498, 142352), (4592, 139438), (4844, 132184), (5084, 125944), (5363, 119392), (5536, 115661), (5642, 113488), (6448, 99302), (6944, 92209), (7093, 90272), (7462, 85808), (8528, 75082), (8897, 71968), (8996, 71176), (9184, 69719), (9688, 66092), (10168, 62972), (10726, 59696), (11284, 56744), (12896, 49651), (14186, 45136), (14924, 42904), (15743, 40672), (16523, 38752), (17056, 37541), (17794, 35984), (17992, 35588), (19376, 33046), (20336, 31486), (21452, 29848), (22568, 28372)]