205874454

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{643}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 452922624

約数和(自身を除く): 247048170

約数列:

[1, 2, 3, 6, 17, 34, 43, 51, 73, 86, 102, 129, 146, 219, 258, 438, 643, 731, 1241, 1286, 1462, 1929, 2193, 2482, 3139, 3723, 3858, 4386, 6278, 7446, 9417, 10931, 18834, 21862, 27649, 32793, 46939, 53363, 55298, 65586, 82947, 93878, 106726, 140817, 160089, 165894, 281634, 320178, 470033, 797963, 940066, 1410099, 1595926, 2018377, 2393889, 2820198, 4036754, 4787778, 6055131, 12110262, 34312409, 68624818, 102937227, 205874454]

約数ペア:

[(1, 205874454), (2, 102937227), (3, 68624818), (6, 34312409), (17, 12110262), (34, 6055131), (43, 4787778), (51, 4036754), (73, 2820198), (86, 2393889), (102, 2018377), (129, 1595926), (146, 1410099), (219, 940066), (258, 797963), (438, 470033), (643, 320178), (731, 281634), (1241, 165894), (1286, 160089), (1462, 140817), (1929, 106726), (2193, 93878), (2482, 82947), (3139, 65586), (3723, 55298), (3858, 53363), (4386, 46939), (6278, 32793), (7446, 27649), (9417, 21862), (10931, 18834)]