256665796

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1439}}^1$

素因数の和:1564

約数の個数: 48

約数和(自身を含む): 494968320

約数和(自身を除く): 238302524

約数列:

[1, 2, 4, 17, 34, 43, 61, 68, 86, 122, 172, 244, 731, 1037, 1439, 1462, 2074, 2623, 2878, 2924, 4148, 5246, 5756, 10492, 24463, 44591, 48926, 61877, 87779, 89182, 97852, 123754, 175558, 178364, 247508, 351116, 1051909, 1492243, 2103818, 2984486, 3774497, 4207636, 5968972, 7548994, 15097988, 64166449, 128332898, 256665796]

約数ペア:

[(1, 256665796), (2, 128332898), (4, 64166449), (17, 15097988), (34, 7548994), (43, 5968972), (61, 4207636), (68, 3774497), (86, 2984486), (122, 2103818), (172, 1492243), (244, 1051909), (731, 351116), (1037, 247508), (1439, 178364), (1462, 175558), (2074, 123754), (2623, 97852), (2878, 89182), (2924, 87779), (4148, 61877), (5246, 48926), (5756, 44591), (10492, 24463)]