2142855

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:78

約数の個数: 80

約数和(自身を含む): 4634784

約数和(自身を除く): 2491929

約数列:

[1, 3, 5, 9, 11, 13, 15, 27, 33, 37, 39, 45, 55, 65, 81, 99, 111, 117, 135, 143, 165, 185, 195, 297, 333, 351, 405, 407, 429, 481, 495, 555, 585, 715, 891, 999, 1053, 1221, 1287, 1443, 1485, 1665, 1755, 2035, 2145, 2405, 2997, 3663, 3861, 4329, 4455, 4995, 5265, 5291, 6105, 6435, 7215, 10989, 11583, 12987, 14985, 15873, 18315, 19305, 21645, 26455, 32967, 38961, 47619, 54945, 57915, 64935, 79365, 142857, 164835, 194805, 238095, 428571, 714285, 2142855]

約数ペア:

[(1, 2142855), (3, 714285), (5, 428571), (9, 238095), (11, 194805), (13, 164835), (15, 142857), (27, 79365), (33, 64935), (37, 57915), (39, 54945), (45, 47619), (55, 38961), (65, 32967), (81, 26455), (99, 21645), (111, 19305), (117, 18315), (135, 15873), (143, 14985), (165, 12987), (185, 11583), (195, 10989), (297, 7215), (333, 6435), (351, 6105), (405, 5291), (407, 5265), (429, 4995), (481, 4455), (495, 4329), (555, 3861), (585, 3663), (715, 2997), (891, 2405), (999, 2145), (1053, 2035), (1221, 1755), (1287, 1665), (1443, 1485)]