81738900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{90821}}^1$

素因数の和:90841

約数の個数: 54

約数和(自身を含む): 256208862

約数和(自身を除く): 174469962

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900, 90821, 181642, 272463, 363284, 454105, 544926, 817389, 908210, 1089852, 1362315, 1634778, 1816420, 2270525, 2724630, 3269556, 4086945, 4541050, 5449260, 6811575, 8173890, 9082100, 13623150, 16347780, 20434725, 27246300, 40869450, 81738900]

約数ペア:

[(1, 81738900), (2, 40869450), (3, 27246300), (4, 20434725), (5, 16347780), (6, 13623150), (9, 9082100), (10, 8173890), (12, 6811575), (15, 5449260), (18, 4541050), (20, 4086945), (25, 3269556), (30, 2724630), (36, 2270525), (45, 1816420), (50, 1634778), (60, 1362315), (75, 1089852), (90, 908210), (100, 817389), (150, 544926), (180, 454105), (225, 363284), (300, 272463), (450, 181642), (900, 90821)]