251981392

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{39079}}^1$

素因数の和:39131

約数の個数: 40

約数和(自身を含む): 542743040

約数和(自身を除く): 290761648

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 39079, 78158, 156316, 312632, 508027, 625264, 1016054, 1211449, 2032108, 2422898, 4064216, 4845796, 8128432, 9691592, 15748837, 19383184, 31497674, 62995348, 125990696, 251981392]

約数ペア:

[(1, 251981392), (2, 125990696), (4, 62995348), (8, 31497674), (13, 19383184), (16, 15748837), (26, 9691592), (31, 8128432), (52, 4845796), (62, 4064216), (104, 2422898), (124, 2032108), (208, 1211449), (248, 1016054), (403, 625264), (496, 508027), (806, 312632), (1612, 156316), (3224, 78158), (6448, 39079)]