2008779968

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{185723}}^1$

素因数の和:185761

約数の個数: 42

約数和(自身を含む): 4316411484

約数和(自身を除く): 2307631516

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 2704, 5408, 10816, 185723, 371446, 742892, 1485784, 2414399, 2971568, 4828798, 5943136, 9657596, 11886272, 19315192, 31387187, 38630384, 62774374, 77260768, 125548748, 154521536, 251097496, 502194992, 1004389984, 2008779968]

約数ペア:

[(1, 2008779968), (2, 1004389984), (4, 502194992), (8, 251097496), (13, 154521536), (16, 125548748), (26, 77260768), (32, 62774374), (52, 38630384), (64, 31387187), (104, 19315192), (169, 11886272), (208, 9657596), (338, 5943136), (416, 4828798), (676, 2971568), (832, 2414399), (1352, 1485784), (2704, 742892), (5408, 371446), (10816, 185723)]