20387332

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 44241120

約数和(自身を除く): 23853788

約数列:

[1, 2, 4, 7, 14, 28, 41, 43, 49, 59, 82, 86, 98, 118, 164, 172, 196, 236, 287, 301, 413, 574, 602, 826, 1148, 1204, 1652, 1763, 2009, 2107, 2419, 2537, 2891, 3526, 4018, 4214, 4838, 5074, 5782, 7052, 8036, 8428, 9676, 10148, 11564, 12341, 16933, 17759, 24682, 33866, 35518, 49364, 67732, 71036, 86387, 104017, 118531, 124313, 172774, 208034, 237062, 248626, 345548, 416068, 474124, 497252, 728119, 1456238, 2912476, 5096833, 10193666, 20387332]

約数ペア:

[(1, 20387332), (2, 10193666), (4, 5096833), (7, 2912476), (14, 1456238), (28, 728119), (41, 497252), (43, 474124), (49, 416068), (59, 345548), (82, 248626), (86, 237062), (98, 208034), (118, 172774), (164, 124313), (172, 118531), (196, 104017), (236, 86387), (287, 71036), (301, 67732), (413, 49364), (574, 35518), (602, 33866), (826, 24682), (1148, 17759), (1204, 16933), (1652, 12341), (1763, 11564), (2009, 10148), (2107, 9676), (2419, 8428), (2537, 8036), (2891, 7052), (3526, 5782), (4018, 5074), (4214, 4838)]