27990765

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:192

約数の個数: 80

約数和(自身を含む): 56174976

約数和(自身を除く): 28184211

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 61, 81, 99, 103, 135, 165, 183, 297, 305, 309, 405, 495, 515, 549, 671, 891, 915, 927, 1133, 1485, 1545, 1647, 2013, 2745, 2781, 3355, 3399, 4455, 4635, 4941, 5665, 6039, 6283, 8235, 8343, 10065, 10197, 13905, 16995, 18117, 18849, 24705, 30195, 30591, 31415, 41715, 50985, 54351, 56547, 69113, 90585, 91773, 94245, 152955, 169641, 207339, 271755, 282735, 345565, 458865, 508923, 622017, 848205, 1036695, 1866051, 2544615, 3110085, 5598153, 9330255, 27990765]

約数ペア:

[(1, 27990765), (3, 9330255), (5, 5598153), (9, 3110085), (11, 2544615), (15, 1866051), (27, 1036695), (33, 848205), (45, 622017), (55, 508923), (61, 458865), (81, 345565), (99, 282735), (103, 271755), (135, 207339), (165, 169641), (183, 152955), (297, 94245), (305, 91773), (309, 90585), (405, 69113), (495, 56547), (515, 54351), (549, 50985), (671, 41715), (891, 31415), (915, 30591), (927, 30195), (1133, 24705), (1485, 18849), (1545, 18117), (1647, 16995), (2013, 13905), (2745, 10197), (2781, 10065), (3355, 8343), (3399, 8235), (4455, 6283), (4635, 6039), (4941, 5665)]