20043595

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{97}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 30326688

約数和(自身を除く): 10283093

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 97, 143, 187, 221, 289, 485, 715, 935, 1067, 1105, 1261, 1445, 1649, 2431, 3179, 3757, 5335, 6305, 8245, 12155, 13871, 15895, 18139, 18785, 21437, 28033, 41327, 69355, 90695, 107185, 140165, 206635, 235807, 308363, 364429, 1179035, 1541815, 1822145, 4008719, 20043595]

約数ペア:

[(1, 20043595), (5, 4008719), (11, 1822145), (13, 1541815), (17, 1179035), (55, 364429), (65, 308363), (85, 235807), (97, 206635), (143, 140165), (187, 107185), (221, 90695), (289, 69355), (485, 41327), (715, 28033), (935, 21437), (1067, 18785), (1105, 18139), (1261, 15895), (1445, 13871), (1649, 12155), (2431, 8245), (3179, 6305), (3757, 5335)]