1378420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^3$

素因数の和:132

約数の個数: 24

約数和(自身を含む): 2967048

約数和(自身を除く): 1588628

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1681, 3362, 6724, 8405, 16810, 33620, 68921, 137842, 275684, 344605, 689210, 1378420]

約数ペア:

[(1, 1378420), (2, 689210), (4, 344605), (5, 275684), (10, 137842), (20, 68921), (41, 33620), (82, 16810), (164, 8405), (205, 6724), (410, 3362), (820, 1681)]