18118045180

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{859}}^1\times {\mathrm{3391}}^1$

素因数の和:4570

約数の個数: 48

約数和(自身を含む): 38225940480

約数和(自身を除く): 20107895300

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 859, 1244, 1555, 1718, 3110, 3391, 3436, 4295, 6220, 6782, 8590, 13564, 16955, 17180, 33910, 67820, 267149, 534298, 1054601, 1068596, 1335745, 2109202, 2671490, 2912869, 4218404, 5273005, 5342980, 5825738, 10546010, 11651476, 14564345, 21092020, 29128690, 58257380, 905902259, 1811804518, 3623609036, 4529511295, 9059022590, 18118045180]

約数ペア:

[(1, 18118045180), (2, 9059022590), (4, 4529511295), (5, 3623609036), (10, 1811804518), (20, 905902259), (311, 58257380), (622, 29128690), (859, 21092020), (1244, 14564345), (1555, 11651476), (1718, 10546010), (3110, 5825738), (3391, 5342980), (3436, 5273005), (4295, 4218404), (6220, 2912869), (6782, 2671490), (8590, 2109202), (13564, 1335745), (16955, 1068596), (17180, 1054601), (33910, 534298), (67820, 267149)]