129844784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{991}}^1$

素因数の和:1449

約数の個数: 40

約数和(自身を含む): 265697280

約数和(自身を除く): 135852496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 431, 862, 991, 1724, 1982, 3448, 3964, 6896, 7928, 8189, 15856, 16378, 18829, 32756, 37658, 65512, 75316, 131024, 150632, 301264, 427121, 854242, 1708484, 3416968, 6833936, 8115299, 16230598, 32461196, 64922392, 129844784]

約数ペア:

[(1, 129844784), (2, 64922392), (4, 32461196), (8, 16230598), (16, 8115299), (19, 6833936), (38, 3416968), (76, 1708484), (152, 854242), (304, 427121), (431, 301264), (862, 150632), (991, 131024), (1724, 75316), (1982, 65512), (3448, 37658), (3964, 32756), (6896, 18829), (7928, 16378), (8189, 15856)]