81282915

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 165604608

約数和(自身を除く): 84321693

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 191, 193, 245, 315, 441, 573, 579, 735, 955, 965, 1337, 1351, 1719, 1737, 2205, 2865, 2895, 4011, 4053, 6685, 6755, 8595, 8685, 9359, 9457, 12033, 12159, 20055, 20265, 28077, 28371, 36863, 46795, 47285, 60165, 60795, 84231, 85113, 110589, 140385, 141855, 184315, 258041, 331767, 421155, 425565, 552945, 774123, 1290205, 1658835, 1806287, 2322369, 3870615, 5418861, 9031435, 11611845, 16256583, 27094305, 81282915]

約数ペア:

[(1, 81282915), (3, 27094305), (5, 16256583), (7, 11611845), (9, 9031435), (15, 5418861), (21, 3870615), (35, 2322369), (45, 1806287), (49, 1658835), (63, 1290205), (105, 774123), (147, 552945), (191, 425565), (193, 421155), (245, 331767), (315, 258041), (441, 184315), (573, 141855), (579, 140385), (735, 110589), (955, 85113), (965, 84231), (1337, 60795), (1351, 60165), (1719, 47285), (1737, 46795), (2205, 36863), (2865, 28371), (2895, 28077), (4011, 20265), (4053, 20055), (6685, 12159), (6755, 12033), (8595, 9457), (8685, 9359)]