20453264

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{919}}^1$

素因数の和:1047

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 22668976

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 107, 208, 214, 428, 856, 919, 1391, 1712, 1838, 2782, 3676, 5564, 7352, 11128, 11947, 14704, 22256, 23894, 47788, 95576, 98333, 191152, 196666, 393332, 786664, 1278329, 1573328, 2556658, 5113316, 10226632, 20453264]

約数ペア:

[(1, 20453264), (2, 10226632), (4, 5113316), (8, 2556658), (13, 1573328), (16, 1278329), (26, 786664), (52, 393332), (104, 196666), (107, 191152), (208, 98333), (214, 95576), (428, 47788), (856, 23894), (919, 22256), (1391, 14704), (1712, 11947), (1838, 11128), (2782, 7352), (3676, 5564)]