996816640

素因数分解:

$2^8\times 5^1\times {\mathrm{778763}}^1$

素因数の和:778784

約数の個数: 36

約数和(自身を含む): 2387690424

約数和(自身を除く): 1390873784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 778763, 1557526, 3115052, 3893815, 6230104, 7787630, 12460208, 15575260, 24920416, 31150520, 49840832, 62301040, 99681664, 124602080, 199363328, 249204160, 498408320, 996816640]

約数ペア:

[(1, 996816640), (2, 498408320), (4, 249204160), (5, 199363328), (8, 124602080), (10, 99681664), (16, 62301040), (20, 49840832), (32, 31150520), (40, 24920416), (64, 15575260), (80, 12460208), (128, 7787630), (160, 6230104), (256, 3893815), (320, 3115052), (640, 1557526), (1280, 778763)]