209640284

素因数分解:

$2^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{31327}}^1$

素因数の和:31577

約数の個数: 24

約数和(自身を含む): 421048320

約数和(自身を除く): 211408036

約数列:

[1, 2, 4, 7, 14, 28, 239, 478, 956, 1673, 3346, 6692, 31327, 62654, 125308, 219289, 438578, 877156, 7487153, 14974306, 29948612, 52410071, 104820142, 209640284]

約数ペア:

[(1, 209640284), (2, 104820142), (4, 52410071), (7, 29948612), (14, 14974306), (28, 7487153), (239, 877156), (478, 438578), (956, 219289), (1673, 125308), (3346, 62654), (6692, 31327)]