81407872

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:304

約数の個数: 128

約数和(自身を含む): 207345600

約数和(自身を除く): 125937728

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 29, 32, 52, 56, 58, 64, 91, 104, 112, 116, 128, 182, 203, 208, 224, 232, 241, 364, 377, 406, 416, 448, 464, 482, 728, 754, 812, 832, 896, 928, 964, 1456, 1508, 1624, 1664, 1687, 1856, 1928, 2639, 2912, 3016, 3133, 3248, 3374, 3712, 3856, 5278, 5824, 6032, 6266, 6496, 6748, 6989, 7712, 10556, 11648, 12064, 12532, 12992, 13496, 13978, 15424, 21112, 21931, 24128, 25064, 25984, 26992, 27956, 30848, 42224, 43862, 48256, 48923, 50128, 53984, 55912, 84448, 87724, 90857, 97846, 100256, 107968, 111824, 168896, 175448, 181714, 195692, 200512, 215936, 223648, 337792, 350896, 363428, 391384, 401024, 447296, 635999, 701792, 726856, 782768, 894592, 1271998, 1403584, 1453712, 1565536, 2543996, 2807168, 2907424, 3131072, 5087992, 5814848, 6262144, 10175984, 11629696, 20351968, 40703936, 81407872]

約数ペア:

[(1, 81407872), (2, 40703936), (4, 20351968), (7, 11629696), (8, 10175984), (13, 6262144), (14, 5814848), (16, 5087992), (26, 3131072), (28, 2907424), (29, 2807168), (32, 2543996), (52, 1565536), (56, 1453712), (58, 1403584), (64, 1271998), (91, 894592), (104, 782768), (112, 726856), (116, 701792), (128, 635999), (182, 447296), (203, 401024), (208, 391384), (224, 363428), (232, 350896), (241, 337792), (364, 223648), (377, 215936), (406, 200512), (416, 195692), (448, 181714), (464, 175448), (482, 168896), (728, 111824), (754, 107968), (812, 100256), (832, 97846), (896, 90857), (928, 87724), (964, 84448), (1456, 55912), (1508, 53984), (1624, 50128), (1664, 48923), (1687, 48256), (1856, 43862), (1928, 42224), (2639, 30848), (2912, 27956), (3016, 26992), (3133, 25984), (3248, 25064), (3374, 24128), (3712, 21931), (3856, 21112), (5278, 15424), (5824, 13978), (6032, 13496), (6266, 12992), (6496, 12532), (6748, 12064), (6989, 11648), (7712, 10556)]