1287405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 2630784

約数和(自身を除く): 1343379

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 61, 63, 67, 105, 183, 201, 305, 315, 335, 427, 469, 549, 603, 915, 1005, 1281, 1407, 2135, 2345, 2745, 3015, 3843, 4087, 4221, 6405, 7035, 12261, 19215, 20435, 21105, 28609, 36783, 61305, 85827, 143045, 183915, 257481, 429135, 1287405]

約数ペア:

[(1, 1287405), (3, 429135), (5, 257481), (7, 183915), (9, 143045), (15, 85827), (21, 61305), (35, 36783), (45, 28609), (61, 21105), (63, 20435), (67, 19215), (105, 12261), (183, 7035), (201, 6405), (305, 4221), (315, 4087), (335, 3843), (427, 3015), (469, 2745), (549, 2345), (603, 2135), (915, 1407), (1005, 1281)]