31131405

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:315

約数の個数: 64

約数和(自身を含む): 59616000

約数和(自身を除く): 28484595

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 53, 57, 95, 135, 159, 171, 229, 265, 285, 477, 513, 687, 795, 855, 1007, 1145, 1431, 2061, 2385, 2565, 3021, 3435, 4351, 5035, 6183, 7155, 9063, 10305, 12137, 13053, 15105, 21755, 27189, 30915, 36411, 39159, 45315, 60685, 65265, 109233, 117477, 135945, 182055, 195795, 230603, 327699, 546165, 587385, 691809, 1153015, 1638495, 2075427, 3459045, 6226281, 10377135, 31131405]

約数ペア:

[(1, 31131405), (3, 10377135), (5, 6226281), (9, 3459045), (15, 2075427), (19, 1638495), (27, 1153015), (45, 691809), (53, 587385), (57, 546165), (95, 327699), (135, 230603), (159, 195795), (171, 182055), (229, 135945), (265, 117477), (285, 109233), (477, 65265), (513, 60685), (687, 45315), (795, 39159), (855, 36411), (1007, 30915), (1145, 27189), (1431, 21755), (2061, 15105), (2385, 13053), (2565, 12137), (3021, 10305), (3435, 9063), (4351, 7155), (5035, 6183)]