1990262025

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{305021}}^1$

素因数の和:305066

約数の個数: 36

約数和(自身を含む): 3687715980

約数和(自身を除く): 1697453955

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 6525, 305021, 915063, 1525105, 2745189, 4575315, 7625525, 8845609, 13725945, 22876575, 26536827, 44228045, 68629725, 79610481, 132684135, 221140225, 398052405, 663420675, 1990262025]

約数ペア:

[(1, 1990262025), (3, 663420675), (5, 398052405), (9, 221140225), (15, 132684135), (25, 79610481), (29, 68629725), (45, 44228045), (75, 26536827), (87, 22876575), (145, 13725945), (225, 8845609), (261, 7625525), (435, 4575315), (725, 2745189), (1305, 1525105), (2175, 915063), (6525, 305021)]