2165960

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{313}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 4917240

約数和(自身を除く): 2751280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 313, 346, 626, 692, 865, 1252, 1384, 1565, 1730, 2504, 3130, 3460, 6260, 6920, 12520, 54149, 108298, 216596, 270745, 433192, 541490, 1082980, 2165960]

約数ペア:

[(1, 2165960), (2, 1082980), (4, 541490), (5, 433192), (8, 270745), (10, 216596), (20, 108298), (40, 54149), (173, 12520), (313, 6920), (346, 6260), (626, 3460), (692, 3130), (865, 2504), (1252, 1730), (1384, 1565)]