20805216405

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2251}}^1\times {\mathrm{5653}}^1$

素因数の和:8021

約数の個数: 32

約数和(自身を含む): 33614613120

約数和(自身を除く): 12809396715

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 2251, 5653, 6753, 11255, 16959, 28265, 33765, 84795, 245359, 616177, 736077, 1226795, 1848531, 3080885, 3680385, 9242655, 12724903, 38174709, 63624515, 190873545, 1387014427, 4161043281, 6935072135, 20805216405]

約数ペア:

[(1, 20805216405), (3, 6935072135), (5, 4161043281), (15, 1387014427), (109, 190873545), (327, 63624515), (545, 38174709), (1635, 12724903), (2251, 9242655), (5653, 3680385), (6753, 3080885), (11255, 1848531), (16959, 1226795), (28265, 736077), (33765, 616177), (84795, 245359)]