1981500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{1321}}^1$

素因数の和:1343

約数の個数: 48

約数和(自身を含む): 5774496

約数和(自身を除く): 3792996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 750, 1321, 1500, 2642, 3963, 5284, 6605, 7926, 13210, 15852, 19815, 26420, 33025, 39630, 66050, 79260, 99075, 132100, 165125, 198150, 330250, 396300, 495375, 660500, 990750, 1981500]

約数ペア:

[(1, 1981500), (2, 990750), (3, 660500), (4, 495375), (5, 396300), (6, 330250), (10, 198150), (12, 165125), (15, 132100), (20, 99075), (25, 79260), (30, 66050), (50, 39630), (60, 33025), (75, 26420), (100, 19815), (125, 15852), (150, 13210), (250, 7926), (300, 6605), (375, 5284), (500, 3963), (750, 2642), (1321, 1500)]