18080240

素因数分解:

$2^4\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1171}}^1$

素因数の和:1377

約数の個数: 40

約数和(自身を含む): 42290448

約数和(自身を除く): 24210208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 193, 386, 772, 965, 1171, 1544, 1930, 2342, 3088, 3860, 4684, 5855, 7720, 9368, 11710, 15440, 18736, 23420, 46840, 93680, 226003, 452006, 904012, 1130015, 1808024, 2260030, 3616048, 4520060, 9040120, 18080240]

約数ペア:

[(1, 18080240), (2, 9040120), (4, 4520060), (5, 3616048), (8, 2260030), (10, 1808024), (16, 1130015), (20, 904012), (40, 452006), (80, 226003), (193, 93680), (386, 46840), (772, 23420), (965, 18736), (1171, 15440), (1544, 11710), (1930, 9368), (2342, 7720), (3088, 5855), (3860, 4684)]