16405785

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 32864832

約数和(自身を除く): 16459047

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 121, 131, 165, 207, 253, 345, 363, 393, 495, 605, 655, 759, 1035, 1089, 1179, 1265, 1441, 1815, 1965, 2277, 2783, 3013, 3795, 4323, 5445, 5895, 7205, 8349, 9039, 11385, 12969, 13915, 15065, 15851, 21615, 25047, 27117, 33143, 41745, 45195, 47553, 64845, 79255, 99429, 125235, 135585, 142659, 165715, 237765, 298287, 364573, 497145, 713295, 1093719, 1491435, 1822865, 3281157, 5468595, 16405785]

約数ペア:

[(1, 16405785), (3, 5468595), (5, 3281157), (9, 1822865), (11, 1491435), (15, 1093719), (23, 713295), (33, 497145), (45, 364573), (55, 298287), (69, 237765), (99, 165715), (115, 142659), (121, 135585), (131, 125235), (165, 99429), (207, 79255), (253, 64845), (345, 47553), (363, 45195), (393, 41745), (495, 33143), (605, 27117), (655, 25047), (759, 21615), (1035, 15851), (1089, 15065), (1179, 13915), (1265, 12969), (1441, 11385), (1815, 9039), (1965, 8349), (2277, 7205), (2783, 5895), (3013, 5445), (3795, 4323)]