20123768500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{3658867}}^1$

素因数の和:3658897

約数の個数: 48

約数和(自身を含む): 47945806272

約数和(自身を除く): 27822037772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 2750, 5500, 3658867, 7317734, 14635468, 18294335, 36588670, 40247537, 73177340, 80495074, 91471675, 160990148, 182943350, 201237685, 365886700, 402475370, 457358375, 804950740, 914716750, 1006188425, 1829433500, 2012376850, 4024753700, 5030942125, 10061884250, 20123768500]

約数ペア:

[(1, 20123768500), (2, 10061884250), (4, 5030942125), (5, 4024753700), (10, 2012376850), (11, 1829433500), (20, 1006188425), (22, 914716750), (25, 804950740), (44, 457358375), (50, 402475370), (55, 365886700), (100, 201237685), (110, 182943350), (125, 160990148), (220, 91471675), (250, 80495074), (275, 73177340), (500, 40247537), (550, 36588670), (1100, 18294335), (1375, 14635468), (2750, 7317734), (5500, 3658867)]