221554004

素因数分解:

$2^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 451248000

約数和(自身を除く): 229693996

約数列:

[1, 2, 4, 7, 14, 28, 101, 157, 202, 314, 404, 499, 628, 707, 998, 1099, 1414, 1996, 2198, 2828, 3493, 4396, 6986, 13972, 15857, 31714, 50399, 63428, 78343, 100798, 110999, 156686, 201596, 221998, 313372, 352793, 443996, 548401, 705586, 1096802, 1411172, 2193604, 7912643, 15825286, 31650572, 55388501, 110777002, 221554004]

約数ペア:

[(1, 221554004), (2, 110777002), (4, 55388501), (7, 31650572), (14, 15825286), (28, 7912643), (101, 2193604), (157, 1411172), (202, 1096802), (314, 705586), (404, 548401), (499, 443996), (628, 352793), (707, 313372), (998, 221998), (1099, 201596), (1414, 156686), (1996, 110999), (2198, 100798), (2828, 78343), (3493, 63428), (4396, 50399), (6986, 31714), (13972, 15857)]