20280340

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1607}}^1$

素因数の和:2247

約数の個数: 24

約数和(自身を含む): 42682752

約数和(自身を除く): 22402412

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 1607, 2524, 3155, 3214, 6310, 6428, 8035, 12620, 16070, 32140, 1014017, 2028034, 4056068, 5070085, 10140170, 20280340]

約数ペア:

[(1, 20280340), (2, 10140170), (4, 5070085), (5, 4056068), (10, 2028034), (20, 1014017), (631, 32140), (1262, 16070), (1607, 12620), (2524, 8035), (3155, 6428), (3214, 6310)]