20677616

素因数分解:

$2^4\times {\mathrm{509}}^1\times {\mathrm{2539}}^1$

素因数の和:3056

約数の個数: 20

約数和(自身を含む): 40157400

約数和(自身を除く): 19479784

約数列:

[1, 2, 4, 8, 16, 509, 1018, 2036, 2539, 4072, 5078, 8144, 10156, 20312, 40624, 1292351, 2584702, 5169404, 10338808, 20677616]

約数ペア:

[(1, 20677616), (2, 10338808), (4, 5169404), (8, 2584702), (16, 1292351), (509, 40624), (1018, 20312), (2036, 10156), (2539, 8144), (4072, 5078)]