817995020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{3701}}^1$

素因数の和:4010

約数の個数: 48

約数和(自身を含む): 1765054368

約数和(自身を除く): 947059348

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 257, 430, 514, 860, 1028, 1285, 2570, 3701, 5140, 7402, 11051, 14804, 18505, 22102, 37010, 44204, 55255, 74020, 110510, 159143, 221020, 318286, 636572, 795715, 951157, 1591430, 1902314, 3182860, 3804628, 4755785, 9511570, 19023140, 40899751, 81799502, 163599004, 204498755, 408997510, 817995020]

約数ペア:

[(1, 817995020), (2, 408997510), (4, 204498755), (5, 163599004), (10, 81799502), (20, 40899751), (43, 19023140), (86, 9511570), (172, 4755785), (215, 3804628), (257, 3182860), (430, 1902314), (514, 1591430), (860, 951157), (1028, 795715), (1285, 636572), (2570, 318286), (3701, 221020), (5140, 159143), (7402, 110510), (11051, 74020), (14804, 55255), (18505, 44204), (22102, 37010)]