20393672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1249}}^1$

素因数の和:1425

約数の個数: 32

約数和(自身を含む): 41475000

約数和(自身を除く): 21081328

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 314, 628, 1249, 1256, 2041, 2498, 4082, 4996, 8164, 9992, 16237, 16328, 32474, 64948, 129896, 196093, 392186, 784372, 1568744, 2549209, 5098418, 10196836, 20393672]

約数ペア:

[(1, 20393672), (2, 10196836), (4, 5098418), (8, 2549209), (13, 1568744), (26, 784372), (52, 392186), (104, 196093), (157, 129896), (314, 64948), (628, 32474), (1249, 16328), (1256, 16237), (2041, 9992), (2498, 8164), (4082, 4996)]