2106220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1987}}^1$

素因数の和:2049

約数の個数: 24

約数和(自身を含む): 4508784

約数和(自身を除く): 2402564

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 1987, 3974, 7948, 9935, 19870, 39740, 105311, 210622, 421244, 526555, 1053110, 2106220]

約数ペア:

[(1, 2106220), (2, 1053110), (4, 526555), (5, 421244), (10, 210622), (20, 105311), (53, 39740), (106, 19870), (212, 9935), (265, 7948), (530, 3974), (1060, 1987)]