20266335

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 18302625

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 61, 69, 107, 115, 135, 183, 207, 305, 321, 345, 535, 549, 621, 915, 963, 1035, 1403, 1605, 1647, 2461, 2745, 2889, 3105, 4209, 4815, 6527, 7015, 7383, 8235, 12305, 12627, 14445, 19581, 21045, 22149, 32635, 36915, 37881, 58743, 63135, 66447, 97905, 110745, 150121, 176229, 189405, 293715, 332235, 450363, 750605, 881145, 1351089, 2251815, 4053267, 6755445, 20266335]

約数ペア:

[(1, 20266335), (3, 6755445), (5, 4053267), (9, 2251815), (15, 1351089), (23, 881145), (27, 750605), (45, 450363), (61, 332235), (69, 293715), (107, 189405), (115, 176229), (135, 150121), (183, 110745), (207, 97905), (305, 66447), (321, 63135), (345, 58743), (535, 37881), (549, 36915), (621, 32635), (915, 22149), (963, 21045), (1035, 19581), (1403, 14445), (1605, 12627), (1647, 12305), (2461, 8235), (2745, 7383), (2889, 7015), (3105, 6527), (4209, 4815)]