2138680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 4861440

約数和(自身を除く): 2722760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 421, 508, 635, 842, 1016, 1270, 1684, 2105, 2540, 3368, 4210, 5080, 8420, 16840, 53467, 106934, 213868, 267335, 427736, 534670, 1069340, 2138680]

約数ペア:

[(1, 2138680), (2, 1069340), (4, 534670), (5, 427736), (8, 267335), (10, 213868), (20, 106934), (40, 53467), (127, 16840), (254, 8420), (421, 5080), (508, 4210), (635, 3368), (842, 2540), (1016, 2105), (1270, 1684)]