20121479125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{340321}}^1$

素因数の和:340390

約数の個数: 32

約数和(自身を含む): 28031642496

約数和(自身を除く): 7910163371

約数列:

[1, 5, 11, 25, 43, 55, 125, 215, 275, 473, 1075, 1375, 2365, 5375, 11825, 59125, 340321, 1701605, 3743531, 8508025, 14633803, 18717655, 42540125, 73169015, 93588275, 160971833, 365845075, 467941375, 804859165, 1829225375, 4024295825, 20121479125]

約数ペア:

[(1, 20121479125), (5, 4024295825), (11, 1829225375), (25, 804859165), (43, 467941375), (55, 365845075), (125, 160971833), (215, 93588275), (275, 73169015), (473, 42540125), (1075, 18717655), (1375, 14633803), (2365, 8508025), (5375, 3743531), (11825, 1701605), (59125, 340321)]