20311155

素因数分解:

$3^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 37171680

約数和(自身を除く): 16860525

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 229, 243, 365, 405, 657, 687, 1095, 1145, 1215, 1971, 2061, 3285, 3435, 5913, 6183, 9855, 10305, 16717, 17739, 18549, 29565, 30915, 50151, 55647, 83585, 88695, 92745, 150453, 250755, 278235, 451359, 752265, 1354077, 2256795, 4062231, 6770385, 20311155]

約数ペア:

[(1, 20311155), (3, 6770385), (5, 4062231), (9, 2256795), (15, 1354077), (27, 752265), (45, 451359), (73, 278235), (81, 250755), (135, 150453), (219, 92745), (229, 88695), (243, 83585), (365, 55647), (405, 50151), (657, 30915), (687, 29565), (1095, 18549), (1145, 17739), (1215, 16717), (1971, 10305), (2061, 9855), (3285, 6183), (3435, 5913)]