2889680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{881}}^1$

素因数の和:935

約数の個数: 40

約数和(自身を含む): 6890184

約数和(自身を除く): 4000504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 881, 1640, 1762, 3280, 3524, 4405, 7048, 8810, 14096, 17620, 35240, 36121, 70480, 72242, 144484, 180605, 288968, 361210, 577936, 722420, 1444840, 2889680]

約数ペア:

[(1, 2889680), (2, 1444840), (4, 722420), (5, 577936), (8, 361210), (10, 288968), (16, 180605), (20, 144484), (40, 72242), (41, 70480), (80, 36121), (82, 35240), (164, 17620), (205, 14096), (328, 8810), (410, 7048), (656, 4405), (820, 3524), (881, 3280), (1640, 1762)]