19089920

素因数分解:

$2^9\times 5^1\times {\mathrm{7457}}^1$

素因数の和:7480

約数の個数: 40

約数和(自身を含む): 45777204

約数和(自身を除く): 26687284

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 7457, 14914, 29828, 37285, 59656, 74570, 119312, 149140, 238624, 298280, 477248, 596560, 954496, 1193120, 1908992, 2386240, 3817984, 4772480, 9544960, 19089920]

約数ペア:

[(1, 19089920), (2, 9544960), (4, 4772480), (5, 3817984), (8, 2386240), (10, 1908992), (16, 1193120), (20, 954496), (32, 596560), (40, 477248), (64, 298280), (80, 238624), (128, 149140), (160, 119312), (256, 74570), (320, 59656), (512, 37285), (640, 29828), (1280, 14914), (2560, 7457)]