19945035

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{37}}^1$

素因数の和:87

約数の個数: 80

約数和(自身を含む): 40388832

約数和(自身を除く): 20443797

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 37, 45, 55, 81, 99, 111, 121, 135, 165, 185, 297, 333, 363, 405, 407, 495, 555, 605, 891, 999, 1089, 1221, 1331, 1485, 1665, 1815, 2035, 2997, 3267, 3663, 3993, 4455, 4477, 4995, 5445, 6105, 6655, 9801, 10989, 11979, 13431, 14985, 16335, 18315, 19965, 22385, 32967, 35937, 40293, 49005, 49247, 54945, 59895, 67155, 107811, 120879, 147741, 164835, 179685, 201465, 246235, 362637, 443223, 539055, 604395, 738705, 1329669, 1813185, 2216115, 3989007, 6648345, 19945035]

約数ペア:

[(1, 19945035), (3, 6648345), (5, 3989007), (9, 2216115), (11, 1813185), (15, 1329669), (27, 738705), (33, 604395), (37, 539055), (45, 443223), (55, 362637), (81, 246235), (99, 201465), (111, 179685), (121, 164835), (135, 147741), (165, 120879), (185, 107811), (297, 67155), (333, 59895), (363, 54945), (405, 49247), (407, 49005), (495, 40293), (555, 35937), (605, 32967), (891, 22385), (999, 19965), (1089, 18315), (1221, 16335), (1331, 14985), (1485, 13431), (1665, 11979), (1815, 10989), (2035, 9801), (2997, 6655), (3267, 6105), (3663, 5445), (3993, 4995), (4455, 4477)]