30176860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{491}}^1$

素因数の和:946

約数の個数: 48

約数和(自身を含む): 72737280

約数和(自身を除く): 42560420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 439, 491, 878, 982, 1756, 1964, 2195, 2455, 3073, 3437, 4390, 4910, 6146, 6874, 8780, 9820, 12292, 13748, 15365, 17185, 30730, 34370, 61460, 68740, 215549, 431098, 862196, 1077745, 1508843, 2155490, 3017686, 4310980, 6035372, 7544215, 15088430, 30176860]

約数ペア:

[(1, 30176860), (2, 15088430), (4, 7544215), (5, 6035372), (7, 4310980), (10, 3017686), (14, 2155490), (20, 1508843), (28, 1077745), (35, 862196), (70, 431098), (140, 215549), (439, 68740), (491, 61460), (878, 34370), (982, 30730), (1756, 17185), (1964, 15365), (2195, 13748), (2455, 12292), (3073, 9820), (3437, 8780), (4390, 6874), (4910, 6146)]