2940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2$

素因数の和:26

約数の個数: 36

約数和(自身を含む): 9576

約数和(自身を除く): 6636

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940]

約数ペア:

[(1, 2940), (2, 1470), (3, 980), (4, 735), (5, 588), (6, 490), (7, 420), (10, 294), (12, 245), (14, 210), (15, 196), (20, 147), (21, 140), (28, 105), (30, 98), (35, 84), (42, 70), (49, 60)]