409086380

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{288089}}^1$

素因数の和:288169

約数の個数: 24

約数和(自身を含む): 871184160

約数和(自身を除く): 462097780

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 288089, 576178, 1152356, 1440445, 2880890, 5761780, 20454319, 40908638, 81817276, 102271595, 204543190, 409086380]

約数ペア:

[(1, 409086380), (2, 204543190), (4, 102271595), (5, 81817276), (10, 40908638), (20, 20454319), (71, 5761780), (142, 2880890), (284, 1440445), (355, 1152356), (710, 576178), (1420, 288089)]