338889340

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{1321}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 724921344

約数和(自身を除く): 386032004

約数列:

[1, 2, 4, 5, 10, 20, 101, 127, 202, 254, 404, 505, 508, 635, 1010, 1270, 1321, 2020, 2540, 2642, 5284, 6605, 12827, 13210, 25654, 26420, 51308, 64135, 128270, 133421, 167767, 256540, 266842, 335534, 533684, 667105, 671068, 838835, 1334210, 1677670, 2668420, 3355340, 16944467, 33888934, 67777868, 84722335, 169444670, 338889340]

約数ペア:

[(1, 338889340), (2, 169444670), (4, 84722335), (5, 67777868), (10, 33888934), (20, 16944467), (101, 3355340), (127, 2668420), (202, 1677670), (254, 1334210), (404, 838835), (505, 671068), (508, 667105), (635, 533684), (1010, 335534), (1270, 266842), (1321, 256540), (2020, 167767), (2540, 133421), (2642, 128270), (5284, 64135), (6605, 51308), (12827, 26420), (13210, 25654)]