18917820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{661}}^1$

素因数の和:732

約数の個数: 96

約数和(自身を含む): 60056640

約数和(自身を除く): 41138820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 53, 54, 60, 90, 106, 108, 135, 159, 180, 212, 265, 270, 318, 477, 530, 540, 636, 661, 795, 954, 1060, 1322, 1431, 1590, 1908, 1983, 2385, 2644, 2862, 3180, 3305, 3966, 4770, 5724, 5949, 6610, 7155, 7932, 9540, 9915, 11898, 13220, 14310, 17847, 19830, 23796, 28620, 29745, 35033, 35694, 39660, 59490, 70066, 71388, 89235, 105099, 118980, 140132, 175165, 178470, 210198, 315297, 350330, 356940, 420396, 525495, 630594, 700660, 945891, 1050990, 1261188, 1576485, 1891782, 2101980, 3152970, 3783564, 4729455, 6305940, 9458910, 18917820]

約数ペア:

[(1, 18917820), (2, 9458910), (3, 6305940), (4, 4729455), (5, 3783564), (6, 3152970), (9, 2101980), (10, 1891782), (12, 1576485), (15, 1261188), (18, 1050990), (20, 945891), (27, 700660), (30, 630594), (36, 525495), (45, 420396), (53, 356940), (54, 350330), (60, 315297), (90, 210198), (106, 178470), (108, 175165), (135, 140132), (159, 118980), (180, 105099), (212, 89235), (265, 71388), (270, 70066), (318, 59490), (477, 39660), (530, 35694), (540, 35033), (636, 29745), (661, 28620), (795, 23796), (954, 19830), (1060, 17847), (1322, 14310), (1431, 13220), (1590, 11898), (1908, 9915), (1983, 9540), (2385, 7932), (2644, 7155), (2862, 6610), (3180, 5949), (3305, 5724), (3966, 4770)]