18793984

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 80

約数和(自身を含む): 42425856

約数和(自身を除く): 23631872

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 64, 71, 88, 94, 128, 142, 176, 188, 256, 284, 352, 376, 512, 517, 568, 704, 752, 781, 1034, 1136, 1408, 1504, 1562, 2068, 2272, 2816, 3008, 3124, 3337, 4136, 4544, 5632, 6016, 6248, 6674, 8272, 9088, 12032, 12496, 13348, 16544, 18176, 24064, 24992, 26696, 33088, 36352, 36707, 49984, 53392, 66176, 73414, 99968, 106784, 132352, 146828, 199936, 213568, 264704, 293656, 399872, 427136, 587312, 854272, 1174624, 1708544, 2349248, 4698496, 9396992, 18793984]

約数ペア:

[(1, 18793984), (2, 9396992), (4, 4698496), (8, 2349248), (11, 1708544), (16, 1174624), (22, 854272), (32, 587312), (44, 427136), (47, 399872), (64, 293656), (71, 264704), (88, 213568), (94, 199936), (128, 146828), (142, 132352), (176, 106784), (188, 99968), (256, 73414), (284, 66176), (352, 53392), (376, 49984), (512, 36707), (517, 36352), (568, 33088), (704, 26696), (752, 24992), (781, 24064), (1034, 18176), (1136, 16544), (1408, 13348), (1504, 12496), (1562, 12032), (2068, 9088), (2272, 8272), (2816, 6674), (3008, 6248), (3124, 6016), (3337, 5632), (4136, 4544)]