1321690880

素因数分解:

$2^8\times 5^1\times {\mathrm{1032571}}^1$

素因数の和:1032592

約数の個数: 36

約数和(自身を含む): 3165865752

約数和(自身を除く): 1844174872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1032571, 2065142, 4130284, 5162855, 8260568, 10325710, 16521136, 20651420, 33042272, 41302840, 66084544, 82605680, 132169088, 165211360, 264338176, 330422720, 660845440, 1321690880]

約数ペア:

[(1, 1321690880), (2, 660845440), (4, 330422720), (5, 264338176), (8, 165211360), (10, 132169088), (16, 82605680), (20, 66084544), (32, 41302840), (40, 33042272), (64, 20651420), (80, 16521136), (128, 10325710), (160, 8260568), (256, 5162855), (320, 4130284), (640, 2065142), (1280, 1032571)]