156724820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1741}}^1$

素因数の和:2400

約数の個数: 48

約数和(自身を含む): 376940928

約数和(自身を除く): 220216108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 1741, 2572, 3215, 3482, 4501, 6430, 6964, 8705, 9002, 12187, 12860, 17410, 18004, 22505, 24374, 34820, 45010, 48748, 60935, 90020, 121870, 243740, 1119463, 2238926, 4477852, 5597315, 7836241, 11194630, 15672482, 22389260, 31344964, 39181205, 78362410, 156724820]

約数ペア:

[(1, 156724820), (2, 78362410), (4, 39181205), (5, 31344964), (7, 22389260), (10, 15672482), (14, 11194630), (20, 7836241), (28, 5597315), (35, 4477852), (70, 2238926), (140, 1119463), (643, 243740), (1286, 121870), (1741, 90020), (2572, 60935), (3215, 48748), (3482, 45010), (4501, 34820), (6430, 24374), (6964, 22505), (8705, 18004), (9002, 17410), (12187, 12860)]