18075555

素因数分解:

$3^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:77

約数の個数: 72

約数和(自身を含む): 35427600

約数和(自身を除く): 17352045

約数列:

[1, 3, 5, 9, 15, 19, 27, 29, 45, 57, 81, 87, 95, 135, 145, 171, 243, 261, 285, 405, 435, 513, 551, 729, 783, 855, 1215, 1305, 1539, 1653, 2187, 2349, 2565, 2755, 3645, 3915, 4617, 4959, 6561, 7047, 7695, 8265, 10935, 11745, 13851, 14877, 21141, 23085, 24795, 32805, 35235, 41553, 44631, 63423, 69255, 74385, 105705, 124659, 133893, 190269, 207765, 223155, 317115, 401679, 623295, 669465, 951345, 1205037, 2008395, 3615111, 6025185, 18075555]

約数ペア:

[(1, 18075555), (3, 6025185), (5, 3615111), (9, 2008395), (15, 1205037), (19, 951345), (27, 669465), (29, 623295), (45, 401679), (57, 317115), (81, 223155), (87, 207765), (95, 190269), (135, 133893), (145, 124659), (171, 105705), (243, 74385), (261, 69255), (285, 63423), (405, 44631), (435, 41553), (513, 35235), (551, 32805), (729, 24795), (783, 23085), (855, 21141), (1215, 14877), (1305, 13851), (1539, 11745), (1653, 10935), (2187, 8265), (2349, 7695), (2565, 7047), (2755, 6561), (3645, 4959), (3915, 4617)]