821005568

素因数分解:

$2^8\times {\mathrm{101}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 1675618056

約数和(自身を除く): 854612488

約数列:

[1, 2, 4, 8, 16, 32, 64, 101, 113, 128, 202, 226, 256, 281, 404, 452, 562, 808, 904, 1124, 1616, 1808, 2248, 3232, 3616, 4496, 6464, 7232, 8992, 11413, 12928, 14464, 17984, 22826, 25856, 28381, 28928, 31753, 35968, 45652, 56762, 63506, 71936, 91304, 113524, 127012, 182608, 227048, 254024, 365216, 454096, 508048, 730432, 908192, 1016096, 1460864, 1816384, 2032192, 2921728, 3207053, 3632768, 4064384, 6414106, 7265536, 8128768, 12828212, 25656424, 51312848, 102625696, 205251392, 410502784, 821005568]

約数ペア:

[(1, 821005568), (2, 410502784), (4, 205251392), (8, 102625696), (16, 51312848), (32, 25656424), (64, 12828212), (101, 8128768), (113, 7265536), (128, 6414106), (202, 4064384), (226, 3632768), (256, 3207053), (281, 2921728), (404, 2032192), (452, 1816384), (562, 1460864), (808, 1016096), (904, 908192), (1124, 730432), (1616, 508048), (1808, 454096), (2248, 365216), (3232, 254024), (3616, 227048), (4496, 182608), (6464, 127012), (7232, 113524), (8992, 91304), (11413, 71936), (12928, 63506), (14464, 56762), (17984, 45652), (22826, 35968), (25856, 31753), (28381, 28928)]