3865240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1361}}^1$

素因数の和:1443

約数の個数: 32

約数和(自身を含む): 8825760

約数和(自身を除く): 4960520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1361, 1420, 2722, 2840, 5444, 6805, 10888, 13610, 27220, 54440, 96631, 193262, 386524, 483155, 773048, 966310, 1932620, 3865240]

約数ペア:

[(1, 3865240), (2, 1932620), (4, 966310), (5, 773048), (8, 483155), (10, 386524), (20, 193262), (40, 96631), (71, 54440), (142, 27220), (284, 13610), (355, 10888), (568, 6805), (710, 5444), (1361, 2840), (1420, 2722)]