71315240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{25111}}^1$

素因数の和:25193

約数の個数: 32

約数和(自身を含む): 162725760

約数和(自身を除く): 91410520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 25111, 50222, 100444, 125555, 200888, 251110, 502220, 1004440, 1782881, 3565762, 7131524, 8914405, 14263048, 17828810, 35657620, 71315240]

約数ペア:

[(1, 71315240), (2, 35657620), (4, 17828810), (5, 14263048), (8, 8914405), (10, 7131524), (20, 3565762), (40, 1782881), (71, 1004440), (142, 502220), (284, 251110), (355, 200888), (568, 125555), (710, 100444), (1420, 50222), (2840, 25111)]