13210880

素因数分解:

$2^8\times 5^1\times {\mathrm{10321}}^1$

素因数の和:10342

約数の個数: 36

約数和(自身を含む): 31647252

約数和(自身を除く): 18436372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 10321, 20642, 41284, 51605, 82568, 103210, 165136, 206420, 330272, 412840, 660544, 825680, 1321088, 1651360, 2642176, 3302720, 6605440, 13210880]

約数ペア:

[(1, 13210880), (2, 6605440), (4, 3302720), (5, 2642176), (8, 1651360), (10, 1321088), (16, 825680), (20, 660544), (32, 412840), (40, 330272), (64, 206420), (80, 165136), (128, 103210), (160, 82568), (256, 51605), (320, 41284), (640, 20642), (1280, 10321)]