15805840

素因数分解:

$2^4\times 5^1\times {\mathrm{197573}}^1$

素因数の和:197586

約数の個数: 20

約数和(自身を含む): 36748764

約数和(自身を除く): 20942924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197573, 395146, 790292, 987865, 1580584, 1975730, 3161168, 3951460, 7902920, 15805840]

約数ペア:

[(1, 15805840), (2, 7902920), (4, 3951460), (5, 3161168), (8, 1975730), (10, 1580584), (16, 987865), (20, 790292), (40, 395146), (80, 197573)]