287351428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1621}}^1$

素因数の和:2132

約数の個数: 48

約数和(自身を含む): 620564224

約数和(自身を除く): 333212796

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 487, 974, 1621, 1948, 3242, 3409, 6331, 6484, 6818, 11347, 12662, 13636, 21073, 22694, 25324, 42146, 44317, 45388, 84292, 88634, 147511, 177268, 295022, 590044, 789427, 1578854, 3157708, 5525989, 10262551, 11051978, 20525102, 22103956, 41050204, 71837857, 143675714, 287351428]

約数ペア:

[(1, 287351428), (2, 143675714), (4, 71837857), (7, 41050204), (13, 22103956), (14, 20525102), (26, 11051978), (28, 10262551), (52, 5525989), (91, 3157708), (182, 1578854), (364, 789427), (487, 590044), (974, 295022), (1621, 177268), (1948, 147511), (3242, 88634), (3409, 84292), (6331, 45388), (6484, 44317), (6818, 42146), (11347, 25324), (12662, 22694), (13636, 21073)]