20104395

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 33652800

約数和(自身を除く): 13548405

約数列:

[1, 3, 5, 15, 29, 87, 113, 145, 339, 409, 435, 565, 1227, 1695, 2045, 3277, 6135, 9831, 11861, 16385, 35583, 46217, 49155, 59305, 138651, 177915, 231085, 693255, 1340293, 4020879, 6701465, 20104395]

約数ペア:

[(1, 20104395), (3, 6701465), (5, 4020879), (15, 1340293), (29, 693255), (87, 231085), (113, 177915), (145, 138651), (339, 59305), (409, 49155), (435, 46217), (565, 35583), (1227, 16385), (1695, 11861), (2045, 9831), (3277, 6135)]