16860440

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1373}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 38087280

約数和(自身を除く): 21226840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1373, 1535, 2456, 2746, 3070, 5492, 6140, 6865, 10984, 12280, 13730, 27460, 54920, 421511, 843022, 1686044, 2107555, 3372088, 4215110, 8430220, 16860440]

約数ペア:

[(1, 16860440), (2, 8430220), (4, 4215110), (5, 3372088), (8, 2107555), (10, 1686044), (20, 843022), (40, 421511), (307, 54920), (614, 27460), (1228, 13730), (1373, 12280), (1535, 10984), (2456, 6865), (2746, 6140), (3070, 5492)]