51239440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{91499}}^1$

素因数の和:91519

約数の個数: 40

約数和(自身を含む): 136152000

約数和(自身を除く): 84912560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 91499, 182998, 365996, 457495, 640493, 731992, 914990, 1280986, 1463984, 1829980, 2561972, 3202465, 3659960, 5123944, 6404930, 7319920, 10247888, 12809860, 25619720, 51239440]

約数ペア:

[(1, 51239440), (2, 25619720), (4, 12809860), (5, 10247888), (7, 7319920), (8, 6404930), (10, 5123944), (14, 3659960), (16, 3202465), (20, 2561972), (28, 1829980), (35, 1463984), (40, 1280986), (56, 914990), (70, 731992), (80, 640493), (112, 457495), (140, 365996), (280, 182998), (560, 91499)]