210602980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{311}}^1\times {\mathrm{691}}^1$

素因数の和:1025

約数の個数: 72

約数和(自身を含む): 516874176

約数和(自身を除く): 306271196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 311, 490, 622, 691, 980, 1244, 1382, 1555, 2177, 2764, 3110, 3455, 4354, 4837, 6220, 6910, 8708, 9674, 10885, 13820, 15239, 19348, 21770, 24185, 30478, 33859, 43540, 48370, 60956, 67718, 76195, 96740, 135436, 152390, 169295, 214901, 304780, 338590, 429802, 677180, 859604, 1074505, 1504307, 2149010, 3008614, 4298020, 6017228, 7521535, 10530149, 15043070, 21060298, 30086140, 42120596, 52650745, 105301490, 210602980]

約数ペア:

[(1, 210602980), (2, 105301490), (4, 52650745), (5, 42120596), (7, 30086140), (10, 21060298), (14, 15043070), (20, 10530149), (28, 7521535), (35, 6017228), (49, 4298020), (70, 3008614), (98, 2149010), (140, 1504307), (196, 1074505), (245, 859604), (311, 677180), (490, 429802), (622, 338590), (691, 304780), (980, 214901), (1244, 169295), (1382, 152390), (1555, 135436), (2177, 96740), (2764, 76195), (3110, 67718), (3455, 60956), (4354, 48370), (4837, 43540), (6220, 33859), (6910, 30478), (8708, 24185), (9674, 21770), (10885, 19348), (13820, 15239)]