18649840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21193}}^1$

素因数の和:21217

約数の個数: 40

約数和(自身を含む): 47305008

約数和(自身を除く): 28655168

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21193, 42386, 84772, 105965, 169544, 211930, 233123, 339088, 423860, 466246, 847720, 932492, 1165615, 1695440, 1864984, 2331230, 3729968, 4662460, 9324920, 18649840]

約数ペア:

[(1, 18649840), (2, 9324920), (4, 4662460), (5, 3729968), (8, 2331230), (10, 1864984), (11, 1695440), (16, 1165615), (20, 932492), (22, 847720), (40, 466246), (44, 423860), (55, 339088), (80, 233123), (88, 211930), (110, 169544), (176, 105965), (220, 84772), (440, 42386), (880, 21193)]