2557890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{293}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 6742008

約数和(自身を除く): 4184118

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 97, 194, 291, 293, 485, 582, 586, 873, 879, 970, 1455, 1465, 1746, 1758, 2637, 2910, 2930, 4365, 4395, 5274, 8730, 8790, 13185, 26370, 28421, 56842, 85263, 142105, 170526, 255789, 284210, 426315, 511578, 852630, 1278945, 2557890]

約数ペア:

[(1, 2557890), (2, 1278945), (3, 852630), (5, 511578), (6, 426315), (9, 284210), (10, 255789), (15, 170526), (18, 142105), (30, 85263), (45, 56842), (90, 28421), (97, 26370), (194, 13185), (291, 8790), (293, 8730), (485, 5274), (582, 4395), (586, 4365), (873, 2930), (879, 2910), (970, 2637), (1455, 1758), (1465, 1746)]