2205440

素因数分解:

$2^8\times 5^1\times {\mathrm{1723}}^1$

素因数の和:1744

約数の個数: 36

約数和(自身を含む): 5285784

約数和(自身を除く): 3080344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1723, 3446, 6892, 8615, 13784, 17230, 27568, 34460, 55136, 68920, 110272, 137840, 220544, 275680, 441088, 551360, 1102720, 2205440]

約数ペア:

[(1, 2205440), (2, 1102720), (4, 551360), (5, 441088), (8, 275680), (10, 220544), (16, 137840), (20, 110272), (32, 68920), (40, 55136), (64, 34460), (80, 27568), (128, 17230), (160, 13784), (256, 8615), (320, 6892), (640, 3446), (1280, 1723)]