20155390

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2467}}^1$

素因数の和:2536

約数の個数: 32

約数和(自身を含む): 39093120

約数和(自身を除く): 18937730

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 95, 190, 215, 430, 817, 1634, 2467, 4085, 4934, 8170, 12335, 24670, 46873, 93746, 106081, 212162, 234365, 468730, 530405, 1060810, 2015539, 4031078, 10077695, 20155390]

約数ペア:

[(1, 20155390), (2, 10077695), (5, 4031078), (10, 2015539), (19, 1060810), (38, 530405), (43, 468730), (86, 234365), (95, 212162), (190, 106081), (215, 93746), (430, 46873), (817, 24670), (1634, 12335), (2467, 8170), (4085, 4934)]