20512861185

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{257489}}^1$

素因数の和:257657

約数の個数: 32

約数和(自身を含む): 33815646720

約数和(自身を除く): 13302785535

約数列:

[1, 3, 5, 15, 47, 113, 141, 235, 339, 565, 705, 1695, 5311, 15933, 26555, 79665, 257489, 772467, 1287445, 3862335, 12101983, 29096257, 36305949, 60509915, 87288771, 145481285, 181529745, 436443855, 1367524079, 4102572237, 6837620395, 20512861185]

約数ペア:

[(1, 20512861185), (3, 6837620395), (5, 4102572237), (15, 1367524079), (47, 436443855), (113, 181529745), (141, 145481285), (235, 87288771), (339, 60509915), (565, 36305949), (705, 29096257), (1695, 12101983), (5311, 3862335), (15933, 1287445), (26555, 772467), (79665, 257489)]