20964860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149749}}^1$

素因数の和:149765

約数の個数: 24

約数和(自身を含む): 50316000

約数和(自身を除く): 29351140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149749, 299498, 598996, 748745, 1048243, 1497490, 2096486, 2994980, 4192972, 5241215, 10482430, 20964860]

約数ペア:

[(1, 20964860), (2, 10482430), (4, 5241215), (5, 4192972), (7, 2994980), (10, 2096486), (14, 1497490), (20, 1048243), (28, 748745), (35, 598996), (70, 299498), (140, 149749)]