639086552

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{8893}}^1$

素因数の和:9603

約数の個数: 32

約数和(自身を含む): 1292476080

約数和(自身を除く): 653389528

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 691, 1382, 2764, 5528, 8893, 8983, 17786, 17966, 35572, 35932, 71144, 71864, 115609, 231218, 462436, 924872, 6145063, 12290126, 24580252, 49160504, 79885819, 159771638, 319543276, 639086552]

約数ペア:

[(1, 639086552), (2, 319543276), (4, 159771638), (8, 79885819), (13, 49160504), (26, 24580252), (52, 12290126), (104, 6145063), (691, 924872), (1382, 462436), (2764, 231218), (5528, 115609), (8893, 71864), (8983, 71144), (17786, 35932), (17966, 35572)]