990786560

素因数分解:

$2^{10}\times 5^1\times {\mathrm{193513}}^1$

素因数の和:193538

約数の個数: 44

約数和(自身を含む): 2376738948

約数和(自身を除く): 1385952388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 193513, 387026, 774052, 967565, 1548104, 1935130, 3096208, 3870260, 6192416, 7740520, 12384832, 15481040, 24769664, 30962080, 49539328, 61924160, 99078656, 123848320, 198157312, 247696640, 495393280, 990786560]

約数ペア:

[(1, 990786560), (2, 495393280), (4, 247696640), (5, 198157312), (8, 123848320), (10, 99078656), (16, 61924160), (20, 49539328), (32, 30962080), (40, 24769664), (64, 15481040), (80, 12384832), (128, 7740520), (160, 6192416), (256, 3870260), (320, 3096208), (512, 1935130), (640, 1548104), (1024, 967565), (1280, 774052), (2560, 387026), (5120, 193513)]