204535720

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{36787}}^1$

素因数の和:36937

約数の個数: 32

約数和(自身を含む): 463528800

約数和(自身を除く): 258993080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 36787, 73574, 147148, 183935, 294296, 367870, 735740, 1471480, 5113393, 10226786, 20453572, 25566965, 40907144, 51133930, 102267860, 204535720]

約数ペア:

[(1, 204535720), (2, 102267860), (4, 51133930), (5, 40907144), (8, 25566965), (10, 20453572), (20, 10226786), (40, 5113393), (139, 1471480), (278, 735740), (556, 367870), (695, 294296), (1112, 183935), (1390, 147148), (2780, 73574), (5560, 36787)]