20718550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{193}}^1$

素因数の和:337

約数の個数: 48

約数和(自身を含む): 41135760

約数和(自身を除く): 20417210

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 113, 190, 193, 226, 386, 475, 565, 950, 965, 1130, 1930, 2147, 2825, 3667, 4294, 4825, 5650, 7334, 9650, 10735, 18335, 21470, 21809, 36670, 43618, 53675, 91675, 107350, 109045, 183350, 218090, 414371, 545225, 828742, 1090450, 2071855, 4143710, 10359275, 20718550]

約数ペア:

[(1, 20718550), (2, 10359275), (5, 4143710), (10, 2071855), (19, 1090450), (25, 828742), (38, 545225), (50, 414371), (95, 218090), (113, 183350), (190, 109045), (193, 107350), (226, 91675), (386, 53675), (475, 43618), (565, 36670), (950, 21809), (965, 21470), (1130, 18335), (1930, 10735), (2147, 9650), (2825, 7334), (3667, 5650), (4294, 4825)]