20389872

素因数分解:

$2^4\times 3^1\times {\mathrm{421}}^1\times {\mathrm{1009}}^1$

素因数の和:1441

約数の個数: 40

約数和(自身を含む): 52851280

約数和(自身を除く): 32461408

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 421, 842, 1009, 1263, 1684, 2018, 2526, 3027, 3368, 4036, 5052, 6054, 6736, 8072, 10104, 12108, 16144, 20208, 24216, 48432, 424789, 849578, 1274367, 1699156, 2548734, 3398312, 5097468, 6796624, 10194936, 20389872]

約数ペア:

[(1, 20389872), (2, 10194936), (3, 6796624), (4, 5097468), (6, 3398312), (8, 2548734), (12, 1699156), (16, 1274367), (24, 849578), (48, 424789), (421, 48432), (842, 24216), (1009, 20208), (1263, 16144), (1684, 12108), (2018, 10104), (2526, 8072), (3027, 6736), (3368, 6054), (4036, 5052)]