28402815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:676

約数の個数: 64

約数和(自身を含む): 57139200

約数和(自身を除く): 28736385

約数列:

[1, 3, 5, 7, 15, 19, 21, 23, 35, 57, 69, 95, 105, 115, 133, 161, 285, 345, 399, 437, 483, 619, 665, 805, 1311, 1857, 1995, 2185, 2415, 3059, 3095, 4333, 6555, 9177, 9285, 11761, 12999, 14237, 15295, 21665, 35283, 42711, 45885, 58805, 64995, 71185, 82327, 99659, 176415, 213555, 246981, 270503, 298977, 411635, 498295, 811509, 1234905, 1352515, 1494885, 1893521, 4057545, 5680563, 9467605, 28402815]

約数ペア:

[(1, 28402815), (3, 9467605), (5, 5680563), (7, 4057545), (15, 1893521), (19, 1494885), (21, 1352515), (23, 1234905), (35, 811509), (57, 498295), (69, 411635), (95, 298977), (105, 270503), (115, 246981), (133, 213555), (161, 176415), (285, 99659), (345, 82327), (399, 71185), (437, 64995), (483, 58805), (619, 45885), (665, 42711), (805, 35283), (1311, 21665), (1857, 15295), (1995, 14237), (2185, 12999), (2415, 11761), (3059, 9285), (3095, 9177), (4333, 6555)]