19863800

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9029}}^1$

素因数の和:9056

約数の個数: 48

約数和(自身を含む): 50387400

約数和(自身を除く): 30523600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9029, 18058, 36116, 45145, 72232, 90290, 99319, 180580, 198638, 225725, 361160, 397276, 451450, 496595, 794552, 902900, 993190, 1805800, 1986380, 2482975, 3972760, 4965950, 9931900, 19863800]

約数ペア:

[(1, 19863800), (2, 9931900), (4, 4965950), (5, 3972760), (8, 2482975), (10, 1986380), (11, 1805800), (20, 993190), (22, 902900), (25, 794552), (40, 496595), (44, 451450), (50, 397276), (55, 361160), (88, 225725), (100, 198638), (110, 180580), (200, 99319), (220, 90290), (275, 72232), (440, 45145), (550, 36116), (1100, 18058), (2200, 9029)]