514040

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 1179360

約数和(自身を除く): 665320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 181, 284, 355, 362, 568, 710, 724, 905, 1420, 1448, 1810, 2840, 3620, 7240, 12851, 25702, 51404, 64255, 102808, 128510, 257020, 514040]

約数ペア:

[(1, 514040), (2, 257020), (4, 128510), (5, 102808), (8, 64255), (10, 51404), (20, 25702), (40, 12851), (71, 7240), (142, 3620), (181, 2840), (284, 1810), (355, 1448), (362, 1420), (568, 905), (710, 724)]