420171255

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{18787}}^1$

素因数の和:18876

約数の個数: 48

約数和(自身を含む): 844107264

約数和(自身を除く): 423936009

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 1065, 1491, 2485, 3195, 4473, 7455, 18787, 22365, 56361, 93935, 131509, 169083, 281805, 394527, 657545, 845415, 1183581, 1333877, 1972635, 4001631, 5917905, 6669385, 9337139, 12004893, 20008155, 28011417, 46685695, 60024465, 84034251, 140057085, 420171255]

約数ペア:

[(1, 420171255), (3, 140057085), (5, 84034251), (7, 60024465), (9, 46685695), (15, 28011417), (21, 20008155), (35, 12004893), (45, 9337139), (63, 6669385), (71, 5917905), (105, 4001631), (213, 1972635), (315, 1333877), (355, 1183581), (497, 845415), (639, 657545), (1065, 394527), (1491, 281805), (2485, 169083), (3195, 131509), (4473, 93935), (7455, 56361), (18787, 22365)]