208538890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{4507}}^1$

素因数の和:5182

約数の個数: 32

約数和(自身を含む): 429738624

約数和(自身を除く): 221199734

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 661, 1322, 3305, 4507, 4627, 6610, 9014, 9254, 22535, 23135, 31549, 45070, 46270, 63098, 157745, 315490, 2979127, 5958254, 14895635, 20853889, 29791270, 41707778, 104269445, 208538890]

約数ペア:

[(1, 208538890), (2, 104269445), (5, 41707778), (7, 29791270), (10, 20853889), (14, 14895635), (35, 5958254), (70, 2979127), (661, 315490), (1322, 157745), (3305, 63098), (4507, 46270), (4627, 45070), (6610, 31549), (9014, 23135), (9254, 22535)]