208565980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1489757}}^1$

素因数の和:1489773

約数の個数: 24

約数和(自身を含む): 500558688

約数和(自身を除く): 291992708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1489757, 2979514, 5959028, 7448785, 10428299, 14897570, 20856598, 29795140, 41713196, 52141495, 104282990, 208565980]

約数ペア:

[(1, 208565980), (2, 104282990), (4, 52141495), (5, 41713196), (7, 29795140), (10, 20856598), (14, 14897570), (20, 10428299), (28, 7448785), (35, 5959028), (70, 2979514), (140, 1489757)]