306740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{313}}^1$

素因数の和:336

約数の個数: 36

約数和(自身を含む): 751716

約数和(自身を除く): 444976

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 313, 490, 626, 980, 1252, 1565, 2191, 3130, 4382, 6260, 8764, 10955, 15337, 21910, 30674, 43820, 61348, 76685, 153370, 306740]

約数ペア:

[(1, 306740), (2, 153370), (4, 76685), (5, 61348), (7, 43820), (10, 30674), (14, 21910), (20, 15337), (28, 10955), (35, 8764), (49, 6260), (70, 4382), (98, 3130), (140, 2191), (196, 1565), (245, 1252), (313, 980), (490, 626)]