249155556

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{51521}}^1$

素因数の和:51572

約数の個数: 48

約数和(自身を含む): 646291968

約数和(自身を除く): 397136412

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4836, 51521, 103042, 154563, 206084, 309126, 618252, 669773, 1339546, 1597151, 2009319, 2679092, 3194302, 4018638, 4791453, 6388604, 8037276, 9582906, 19165812, 20762963, 41525926, 62288889, 83051852, 124577778, 249155556]

約数ペア:

[(1, 249155556), (2, 124577778), (3, 83051852), (4, 62288889), (6, 41525926), (12, 20762963), (13, 19165812), (26, 9582906), (31, 8037276), (39, 6388604), (52, 4791453), (62, 4018638), (78, 3194302), (93, 2679092), (124, 2009319), (156, 1597151), (186, 1339546), (372, 669773), (403, 618252), (806, 309126), (1209, 206084), (1612, 154563), (2418, 103042), (4836, 51521)]