18381545

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 9197335

約数列:

[1, 5, 7, 13, 35, 65, 71, 91, 355, 455, 497, 569, 923, 2485, 2845, 3983, 4615, 6461, 7397, 19915, 32305, 36985, 40399, 51779, 201995, 258895, 282793, 525187, 1413965, 2625935, 3676309, 18381545]

約数ペア:

[(1, 18381545), (5, 3676309), (7, 2625935), (13, 1413965), (35, 525187), (65, 282793), (71, 258895), (91, 201995), (355, 51779), (455, 40399), (497, 36985), (569, 32305), (923, 19915), (2485, 7397), (2845, 6461), (3983, 4615)]