388463715

素因数分解:

$3^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{16633}}^1$

素因数の和:16820

約数の個数: 32

約数和(自身を含む): 694635840

約数和(自身を除く): 306172125

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 173, 519, 865, 1557, 2595, 4671, 7785, 16633, 23355, 49899, 83165, 149697, 249495, 449091, 748485, 2245455, 2877509, 8632527, 14387545, 25897581, 43162635, 77692743, 129487905, 388463715]

約数ペア:

[(1, 388463715), (3, 129487905), (5, 77692743), (9, 43162635), (15, 25897581), (27, 14387545), (45, 8632527), (135, 2877509), (173, 2245455), (519, 748485), (865, 449091), (1557, 249495), (2595, 149697), (4671, 83165), (7785, 49899), (16633, 23355)]