19936261376

素因数分解:

$2^8\times {\mathrm{163}}^1\times {\mathrm{477767}}^1$

素因数の和:477946

約数の個数: 36

約数和(自身を含む): 40038869472

約数和(自身を除く): 20102608096

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 163, 256, 326, 652, 1304, 2608, 5216, 10432, 20864, 41728, 477767, 955534, 1911068, 3822136, 7644272, 15288544, 30577088, 61154176, 77876021, 122308352, 155752042, 311504084, 623008168, 1246016336, 2492032672, 4984065344, 9968130688, 19936261376]

約数ペア:

[(1, 19936261376), (2, 9968130688), (4, 4984065344), (8, 2492032672), (16, 1246016336), (32, 623008168), (64, 311504084), (128, 155752042), (163, 122308352), (256, 77876021), (326, 61154176), (652, 30577088), (1304, 15288544), (2608, 7644272), (5216, 3822136), (10432, 1911068), (20864, 955534), (41728, 477767)]