80144900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{72859}}^1$

素因数の和:72884

約数の個数: 36

約数和(自身を含む): 189727440

約数和(自身を除く): 109582540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 72859, 145718, 291436, 364295, 728590, 801449, 1457180, 1602898, 1821475, 3205796, 3642950, 4007245, 7285900, 8014490, 16028980, 20036225, 40072450, 80144900]

約数ペア:

[(1, 80144900), (2, 40072450), (4, 20036225), (5, 16028980), (10, 8014490), (11, 7285900), (20, 4007245), (22, 3642950), (25, 3205796), (44, 1821475), (50, 1602898), (55, 1457180), (100, 801449), (110, 728590), (220, 364295), (275, 291436), (550, 145718), (1100, 72859)]