81977984

素因数分解:

$2^7\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 96

約数和(自身を含む): 184497600

約数和(自身を除く): 102519616

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 67, 79, 88, 121, 128, 134, 158, 176, 242, 268, 316, 352, 484, 536, 632, 704, 737, 869, 968, 1072, 1264, 1408, 1474, 1738, 1936, 2144, 2528, 2948, 3476, 3872, 4288, 5056, 5293, 5896, 6952, 7744, 8107, 8576, 9559, 10112, 10586, 11792, 13904, 15488, 16214, 19118, 21172, 23584, 27808, 32428, 38236, 42344, 47168, 55616, 58223, 64856, 76472, 84688, 94336, 111232, 116446, 129712, 152944, 169376, 232892, 259424, 305888, 338752, 465784, 518848, 611776, 640453, 677504, 931568, 1037696, 1223552, 1280906, 1863136, 2561812, 3726272, 5123624, 7452544, 10247248, 20494496, 40988992, 81977984]

約数ペア:

[(1, 81977984), (2, 40988992), (4, 20494496), (8, 10247248), (11, 7452544), (16, 5123624), (22, 3726272), (32, 2561812), (44, 1863136), (64, 1280906), (67, 1223552), (79, 1037696), (88, 931568), (121, 677504), (128, 640453), (134, 611776), (158, 518848), (176, 465784), (242, 338752), (268, 305888), (316, 259424), (352, 232892), (484, 169376), (536, 152944), (632, 129712), (704, 116446), (737, 111232), (869, 94336), (968, 84688), (1072, 76472), (1264, 64856), (1408, 58223), (1474, 55616), (1738, 47168), (1936, 42344), (2144, 38236), (2528, 32428), (2948, 27808), (3476, 23584), (3872, 21172), (4288, 19118), (5056, 16214), (5293, 15488), (5896, 13904), (6952, 11792), (7744, 10586), (8107, 10112), (8576, 9559)]