304780

素因数分解:

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

素因数の和:334

約数の個数: 36

約数和(自身を含む): 746928

約数和(自身を除く): 442148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 311, 490, 622, 980, 1244, 1555, 2177, 3110, 4354, 6220, 8708, 10885, 15239, 21770, 30478, 43540, 60956, 76195, 152390, 304780]

約数ペア:

[(1, 304780), (2, 152390), (4, 76195), (5, 60956), (7, 43540), (10, 30478), (14, 21770), (20, 15239), (28, 10885), (35, 8708), (49, 6220), (70, 4354), (98, 3110), (140, 2177), (196, 1555), (245, 1244), (311, 980), (490, 622)]