28684395

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 54950400

約数和(自身を除く): 26266005

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 53, 57, 95, 135, 159, 171, 211, 265, 285, 477, 513, 633, 795, 855, 1007, 1055, 1431, 1899, 2385, 2565, 3021, 3165, 4009, 5035, 5697, 7155, 9063, 9495, 11183, 12027, 15105, 20045, 27189, 28485, 33549, 36081, 45315, 55915, 60135, 100647, 108243, 135945, 167745, 180405, 212477, 301941, 503235, 541215, 637431, 1062385, 1509705, 1912293, 3187155, 5736879, 9561465, 28684395]

約数ペア:

[(1, 28684395), (3, 9561465), (5, 5736879), (9, 3187155), (15, 1912293), (19, 1509705), (27, 1062385), (45, 637431), (53, 541215), (57, 503235), (95, 301941), (135, 212477), (159, 180405), (171, 167745), (211, 135945), (265, 108243), (285, 100647), (477, 60135), (513, 55915), (633, 45315), (795, 36081), (855, 33549), (1007, 28485), (1055, 27189), (1431, 20045), (1899, 15105), (2385, 12027), (2565, 11183), (3021, 9495), (3165, 9063), (4009, 7155), (5035, 5697)]