28490920

素因数分解:

$2^3\times 5^1\times {\mathrm{479}}^1\times {\mathrm{1487}}^1$

素因数の和:1977

約数の個数: 32

約数和(自身を含む): 64281600

約数和(自身を除く): 35790680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 479, 958, 1487, 1916, 2395, 2974, 3832, 4790, 5948, 7435, 9580, 11896, 14870, 19160, 29740, 59480, 712273, 1424546, 2849092, 3561365, 5698184, 7122730, 14245460, 28490920]

約数ペア:

[(1, 28490920), (2, 14245460), (4, 7122730), (5, 5698184), (8, 3561365), (10, 2849092), (20, 1424546), (40, 712273), (479, 59480), (958, 29740), (1487, 19160), (1916, 14870), (2395, 11896), (2974, 9580), (3832, 7435), (4790, 5948)]