2488905

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 4717440

約数和(自身を除く): 2228535

約数列:

[1, 3, 5, 9, 15, 19, 41, 45, 57, 71, 95, 123, 171, 205, 213, 285, 355, 369, 615, 639, 779, 855, 1065, 1349, 1845, 2337, 2911, 3195, 3895, 4047, 6745, 7011, 8733, 11685, 12141, 14555, 20235, 26199, 35055, 43665, 55309, 60705, 130995, 165927, 276545, 497781, 829635, 2488905]

約数ペア:

[(1, 2488905), (3, 829635), (5, 497781), (9, 276545), (15, 165927), (19, 130995), (41, 60705), (45, 55309), (57, 43665), (71, 35055), (95, 26199), (123, 20235), (171, 14555), (205, 12141), (213, 11685), (285, 8733), (355, 7011), (369, 6745), (615, 4047), (639, 3895), (779, 3195), (855, 2911), (1065, 2337), (1349, 1845)]