20785436600

素因数分解:

$2^3\times 5^2\times {\mathrm{227}}^1\times {\mathrm{457829}}^1$

素因数の和:458072

約数の個数: 48

約数和(自身を含む): 48539136600

約数和(自身を除く): 27753700000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 227, 454, 908, 1135, 1816, 2270, 4540, 5675, 9080, 11350, 22700, 45400, 457829, 915658, 1831316, 2289145, 3662632, 4578290, 9156580, 11445725, 18313160, 22891450, 45782900, 91565800, 103927183, 207854366, 415708732, 519635915, 831417464, 1039271830, 2078543660, 2598179575, 4157087320, 5196359150, 10392718300, 20785436600]

約数ペア:

[(1, 20785436600), (2, 10392718300), (4, 5196359150), (5, 4157087320), (8, 2598179575), (10, 2078543660), (20, 1039271830), (25, 831417464), (40, 519635915), (50, 415708732), (100, 207854366), (200, 103927183), (227, 91565800), (454, 45782900), (908, 22891450), (1135, 18313160), (1816, 11445725), (2270, 9156580), (4540, 4578290), (5675, 3662632), (9080, 2289145), (11350, 1831316), (22700, 915658), (45400, 457829)]