128358520

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{7411}}^1$

素因数の和:7855

約数の個数: 32

約数和(自身を含む): 289512720

約数和(自身を除く): 161154200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 866, 1732, 2165, 3464, 4330, 7411, 8660, 14822, 17320, 29644, 37055, 59288, 74110, 148220, 296440, 3208963, 6417926, 12835852, 16044815, 25671704, 32089630, 64179260, 128358520]

約数ペア:

[(1, 128358520), (2, 64179260), (4, 32089630), (5, 25671704), (8, 16044815), (10, 12835852), (20, 6417926), (40, 3208963), (433, 296440), (866, 148220), (1732, 74110), (2165, 59288), (3464, 37055), (4330, 29644), (7411, 17320), (8660, 14822)]