8287420

素因数分解:

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

素因数の和:334

約数の個数: 48

約数和(自身を含む): 18577440

約数和(自身を除く): 10290020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 193, 226, 380, 386, 452, 565, 772, 965, 1130, 1930, 2147, 2260, 3667, 3860, 4294, 7334, 8588, 10735, 14668, 18335, 21470, 21809, 36670, 42940, 43618, 73340, 87236, 109045, 218090, 414371, 436180, 828742, 1657484, 2071855, 4143710, 8287420]

約数ペア:

[(1, 8287420), (2, 4143710), (4, 2071855), (5, 1657484), (10, 828742), (19, 436180), (20, 414371), (38, 218090), (76, 109045), (95, 87236), (113, 73340), (190, 43618), (193, 42940), (226, 36670), (380, 21809), (386, 21470), (452, 18335), (565, 14668), (772, 10735), (965, 8588), (1130, 7334), (1930, 4294), (2147, 3860), (2260, 3667)]