1260140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9001}}^1$

素因数の和:9017

約数の個数: 24

約数和(自身を含む): 3024672

約数和(自身を除く): 1764532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9001, 18002, 36004, 45005, 63007, 90010, 126014, 180020, 252028, 315035, 630070, 1260140]

約数ペア:

[(1, 1260140), (2, 630070), (4, 315035), (5, 252028), (7, 180020), (10, 126014), (14, 90010), (20, 63007), (28, 45005), (35, 36004), (70, 18002), (140, 9001)]