20140421275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{433}}^1\times {\mathrm{857}}^1$

素因数の和:1480

約数の個数: 48

約数和(自身を含む): 27150387264

約数和(自身を除く): 7009965989

約数列:

[1, 5, 13, 25, 65, 167, 325, 433, 835, 857, 2165, 2171, 4175, 4285, 5629, 10825, 10855, 11141, 21425, 28145, 54275, 55705, 72311, 140725, 143119, 278525, 361555, 371081, 715595, 940043, 1807775, 1855405, 1860547, 3577975, 4700215, 4824053, 9277025, 9302735, 23501075, 24120265, 46513675, 61970527, 120601325, 309852635, 805616851, 1549263175, 4028084255, 20140421275]

約数ペア:

[(1, 20140421275), (5, 4028084255), (13, 1549263175), (25, 805616851), (65, 309852635), (167, 120601325), (325, 61970527), (433, 46513675), (835, 24120265), (857, 23501075), (2165, 9302735), (2171, 9277025), (4175, 4824053), (4285, 4700215), (5629, 3577975), (10825, 1860547), (10855, 1855405), (11141, 1807775), (21425, 940043), (28145, 715595), (54275, 371081), (55705, 361555), (72311, 278525), (140725, 143119)]