18044720

素因数分解:

$2^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1069}}^1$

素因数の和:1293

約数の個数: 40

約数和(自身を含む): 42192240

約数和(自身を除く): 24147520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 211, 422, 844, 1055, 1069, 1688, 2110, 2138, 3376, 4220, 4276, 5345, 8440, 8552, 10690, 16880, 17104, 21380, 42760, 85520, 225559, 451118, 902236, 1127795, 1804472, 2255590, 3608944, 4511180, 9022360, 18044720]

約数ペア:

[(1, 18044720), (2, 9022360), (4, 4511180), (5, 3608944), (8, 2255590), (10, 1804472), (16, 1127795), (20, 902236), (40, 451118), (80, 225559), (211, 85520), (422, 42760), (844, 21380), (1055, 17104), (1069, 16880), (1688, 10690), (2110, 8552), (2138, 8440), (3376, 5345), (4220, 4276)]