209969480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{749891}}^1$

素因数の和:749909

約数の個数: 32

約数和(自身を含む): 539922240

約数和(自身を除く): 329952760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 749891, 1499782, 2999564, 3749455, 5249237, 5999128, 7498910, 10498474, 14997820, 20996948, 26246185, 29995640, 41993896, 52492370, 104984740, 209969480]

約数ペア:

[(1, 209969480), (2, 104984740), (4, 52492370), (5, 41993896), (7, 29995640), (8, 26246185), (10, 20996948), (14, 14997820), (20, 10498474), (28, 7498910), (35, 5999128), (40, 5249237), (56, 3749455), (70, 2999564), (140, 1499782), (280, 749891)]